单词 | inert gas |
释义 | 例句释义: 惰性气体,惰性气体保护焊,惰气金属弧熔接 1. The front and rear base plates are sealed into a whole body injected with inert gas of the given pressure. 将前后两基板对位、封接成一个整体,内充一定压力的惰性气体。 www.hgpf114.com 2. If the ship is fitted, or required to be fitted, with an Inert Gas System the following questions should be answered. 如果船上已安装或被要求安装惰气系统,应回答下列问题。 www.shipman.org.cn 3. The leak check should be performed with an inert gas, and care should be taken not to over pressurize any components of the system. 检漏应用惰性气体进行,注意不要使系统的任何组件过压。 www.airproducts.com.hk 4. What if I had a little bit more A, in the presence of the inert gas? 我稍稍增加A的量会怎么样,如果在存在惰性气体的情况下? open.163.com 5. I add a little bit of inert gas, there's a little bit more entropy of mixing. 加入一点惰性气体,就会有一点混合熵。 open.163.com 6. The principle of the indirect temperature measurement uses the defined expansion properties of an inert gas in a closed system. 非直接温度测量的原理利用了封闭系统中惰性气体的膨胀规律。 tecsis.de 7. Dedicated inert gas cylinders located in the same gas cabinet or exhausted enclosure should be used for purging operations. 应当使用位于同一个气体室或排气室内的专用惰性气体钢瓶来进行净化操作。 www.airproducts.com.hk 8. The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like. 在元素周期表中,接下来的更重些的元素是惰性气体氦气,它常被用作检测压力容器和其他类似东西的裂缝。 www.ecocn.org 9. So it has to be refined, forged, welded, and cast in a vacuum or under inert gas, an expensive process. 因此,钛的熔炼需要发生在真空中或者惰性气氛之中,也正因为此,熔炼过程很昂贵。 www.bing.com 10. Gas chromatography employ inert gas, commonly Nitrogen, to carry the volatile substances through the column. 气相色谱应用惰性的气体,通常是氮气,来携带挥发性物质通过色谱柱。 www.sepu.net 1. And I'm going to have the inert gas, p with some partial pressure p, inert. 还有一种惰性气体,分压为。 open.163.com 2. If I have nothing, if I have no A here, up here and just the inert gas, then there's no entropy of mixing. 如果没有A物质,而只有惰性气体的话,那么就不会有混合熵。 open.163.com 3. Surface roughness of hardened zone of the ball head pin has been improved on by the use of inert gas . . . 在感应加热过程中采用惰性气体和改进的工装夹具改善了淬火区的表面粗糙度。 www.chemyq.com 4. Nitrogen, which, makes up about 78% of the Earth's atmosphere, is an inert gas but it has more reactive forms. 虽然组成地球大气78%的氮是一种惰性气体,但它却有多种化学式。 www.ecocn.org 5. The bulb is sometimes filled with an inert gas which permits operation at a higher temperature. 灯泡有时充入惰性气体,为的是能在更高的温度下工作。 jpkc.wzu.edu.cn 6. Some of the moist inert gas is recycled, and some if it is passed to the combustion turbine. 在潮湿的惰性气体有些是回收,有些如果传递给燃烧的涡轮机。 www.1168818.cn 7. So it's like an inert gas sitting on top of the water. 所以这里的情况是在水的上方,有一部分惰性气体。 open.163.com 8. Tungsten electrodes for inert gas shielded arc welding, and for plasma cutting and welding. Codification. 编号.用于惰性气体弧焊的钨电报和等离子切割 www.mapeng.net 9. An enhanced oil recovery technique in which an inert gas such as carbon dioxide or nitrogen is injected into a depleted oil reservoir. 向衰竭油层注入惰性气体(二氧化碳或氮气)的一种强化采油法。 www.infopetro.com.cn 10. An inert gas is one that exhibits great stability and extremely low reaction rates under normal temperature and pressure conditions. 惰性气体是在常温和常压下非常稳定且反应率极低的气体。 www.airproducts.com.cn 1. R-134a is an inert gas used primarily as a "high temperature" refrigerant for domestic refrigeration and automobile air conditioners. 134a是一种惰性气体,主要作为家用制冷和汽车空调的“高温”制冷剂。 www.santaihu.com 2. Structural foams are also produced by a similar method(and by extrusion)using an inert gas(usually nitrogen)and resin mixture. 结构泡沫也可以用一种惰性气体(一般是氮气)和树脂混合物用同样的方法(和挤压)被制造出来。 zhidao.baidu.com 3. Foodstuffs may be dried in air, superheated steam, in vacuum, in inert gas, and by the direct application of heat. 食物可以在空气、过热蒸汽、真空、惰性气体中干燥,可以用直接加热干燥。 www.ebigear.com 4. Purge with an inert gas if equipment design does not permit evacuation. 如果设备不允许抽真空,用不活泼气体来净化。 chinafanyi.com 5. It is only device to measure hemodynamic by the Inert Gas Rebreathing method. 唯一应用气体再呼吸法技术检测血流动力学及氧动力学的仪器。 www.5doc.com 6. The discharge lamp comprises a discharge vessel (10) enclosing a discharge space (13) provided with a filling of mercury and an inert gas. 该放电灯包括:密封配置有水银和惰性气体的填充物的放电空间(13)的放电容器(10)。 ip.com 7. You must see that the same is true of the flower which disappears into its inert gas seed. 你必须理解这同样是真实的--花朵消失进入它的惰性气体种子。 hi.baidu.com 8. The simulation of aluminum alloy plate tungsten inert gas welding (TIG) process using finite element software-ABAQUS was researched. 利用ABAQUS有限元软件对铝合金平板钨极氩弧焊(TIG)焊接过程进行了数值模拟。 www.chemyq.com 9. Models of gas-water two-phase seepage and gas diffusion are established due to the mixing either inert gas or natural gas. 针对惰性气体与天然气的混合问题,建立了气水两相渗流模型及气体扩散模型,并以此为基础建立了二维平面有限元模型。 www.chemyq.com 10. An electric arc is struck through an inert gas carrier (usually proprietary), in a sealed special glass tube. 在一密封的特制玻璃管内,电弧刺穿惰性气体媒介物(通常是特定的惰性气体)。 www.slideshare.net 1. The complete measuring system is filled with an inert gas under pressure. 整个测量系统填充了加压气体。 tecsis.de 2. High-tech windows with three panes of glass filled with inert gas guarantee optimum sunshine throughput and insulation. 高科技三层玻璃窗,内部空腔填充惰性气体,可以保证最佳的阳光投射量和室内保温。 blog.sina.com.cn 3. Small-scale simulation tests have shown that inert gas plays a remarkable role in fighting fires and inhibiting gas explosions . 通过小型模拟试验研究了充注惰性气体对抑制火区瓦斯爆炸的作用规律。 dictsearch.appspot.com 4. Alternatively, high-pressure inert gas such as nitrogen is heated in the gasification unit and is then used to dry the coal feed. 另外,高压惰性气体如氮在加热气化单元,然后用干煤饲料。 www.1168818.cn 5. So it takes a lot of pressure on top, a lot of extra inert gas to really make much of a difference. 所以你需要很大的压强,或者说大量的惰性气体,才能使蒸汽压发生很小的改变。 open.163.com 6. Each electrode is a filaments for providing electrons to maintain an electric discharge through an inert gas . 每一电极是一灯丝,它发射电子,以通过惰性气体来维持放电。 dict.kekenet.com 7. the rate of inert gas flow should be as large as possible. 应尽可能增大除氢时惰性气体的单位流量。 www.ceps.com.tw 8. before and after use. During idle periods, systems should be maintained under pressure with approximately 10 psig of dry inert gas. 在空闲时间里,应该在10psig的压力下用干燥的惰性气体来维护系统。 www.airproducts.com.hk 9. He uses tiny bottles, the glass is tinted, he tops the olive oil off with an inert gas. 他用有色小玻璃瓶并在橄榄油上层注入气体。 www.ted.com 10. The protective agent may be an acidic solution, a salt solution or a mixture thereof, or an inert gas. 保护剂为酸溶液或盐溶液或它们的混合液,或者为惰性气体。 ip.com 1. Is the publication IMO-Inert Gas Systems, or Vessel Technical Operator's equivalent manual on board? IMO惰气系统出版物或相当的船舶技术操作手册在船吗? www.dinghengshipping.com 2. The nitrogen in the block Si3N4 can be determined accurately by inert gas fusion thermal conductivity method combined with 5-element bath. 惰气熔融法结合五元浴能够准确测定烧结氮化硅中氮。 www.ilib.cn 3. or light bulb, a filament is enclosed in a glass shell that is either evacuated or filled with an inert gas. 电子白炽灯(即灯泡)中的钨丝是被罩在一个玻璃壳内,内部抽空空气或灌满惰性气体。 dict.wenguo.com 4. Insulate it and the rest of your house. Put in double-pane windows filled with inert gas. 将这片区域和房子的其他部分隔离,放在充满惰性气体的双层玻璃窗户里。 www.bing.com 5. Internally Pilot Operated Valves for inert gas, non-corrosive liquids, and light oil. 内部先导阀的惰性气体,无腐蚀性的液体,和轻质油。 www.gyzdhw.com 6. With some hazardous materials, you can provide further protection by using inert gas to limit the oxygen level in the vacuum dryer. 随着一些有害材料,可以提供进一步的保障真空干燥机使用惰性气体中氧气含量的限制。 www.94493.com 7. Take tungsten-inert-gas arc welding as base welding , and manual are welding as full welding. 焊接时采用钨极惰性气体保护电弧焊打底,手工电弧焊盖面。 dictsearch.appspot.com 8. It is accomplished by introducing gaseous carbon dioxide, nitrogen or inert gas into empty bottle. 其装置是向待装的空瓶内填充二氧化碳气、氮气或惰性气体。 ip.com 9. In the presence of this inert gas, the air. 在有惰性气体,空气存在情况下。 open.163.com 10. In the construction of aquifer underground gas storage, natural gas is substituted by inert gas as cushion gas in order to save the cost. 在含水层型地下储气库的建设中,为节省投资可以用惰性气体替换天然气作为垫层气。 www.chemyq.com 1. I add some inert gas, what happens to the entropy on top? It's increasing, right? 然后加入一定量的惰性气体,那么体系上部的熵发生了什么变化?增加了? open.163.com 2. Direct Acting for inert gas, non-corrosive liquids, and light oil. 直接代理的惰性气体,无腐蚀性的液体,和轻质油。 www.gyzdhw.com 3. Regulation for inert gas systems on chemical tankers. 化学品船惰性气体系统规则。 wenku.baidu.com 4. No, the inert gas system is not operational. 不,惰性气体系统不能正常运转。 blog.sina.com.cn 5. The second step uses the inert gas to replace the air in the reactor. 第二步、用惰性气体置换反应器内的空气。 www.hgpf114.com 6. The conversion zone is continuously purged, preferably with an inert gas such as nitrogen. 转换区不断清除最好的惰性气体,如氮。 www.1168818.cn 7. Nitrogen N2 is a chemical inert gas and accounts for 80% of the terrestrial atmosphere. 氮N2是化学隋性气体,在环地球大气中占有80%的份额。 ip.com 8. Is the Inert Gas System fully operational and in good working order? 惰气系统是否完全可操作且情况良好? www.shipman.org.cn 9. This inert gas can be helium-like. 这种惰性气体氦可以类似。 www.qiyeku.com 10. Evacuate the equipment and break vacuum with an inert gas, such as nitrogen. 对设备抽真空,然后充入不活泼气体,如氮。 www.tdict.com 1. And this reaction was interfered by many factors such as temperature, pressure m, airspeed, inert gas and catalyst. 该反应要受到许多因素的影响,例如:温度、压力、空速、氢碳比、惰性气体以及催化剂。 www.chemyq.com 2. Topslag refining process in CASOB unit under inert gas protection is introduced. 介绍了利用CASOB装置在惰性气体保护下进行顶渣精炼工艺过程。 211.103.157.156 3. Inert gas protect welding is used, special glue is applied for the second sealing to ensure no leakage. 使用惰性气体保护焊接,并灌注专用胶进行二次密封,确保电池无泄漏。 dict.bioon.com 4. The inert gas supply main from the 3-part, that is, high resolution digital camera module, optical systems, and image processing software. 该仪器主给由3部不合组成,即矮不合辨力的数码相机模块、平学编制和图像办理软件。 www.bing.com 5. An inert gas such as argon is introduced to reduce evaporation of the filament. 将诸如氩那样的惰性气体充入灯泡中,以减少灯丝的蒸发。 dict.wenguo.com 6. Particularly the physical foaming use of inert gas as CO2 N 2 meet environmental protection requirements, is payed more attention. 特别是采用CO2,N2等惰性气体作为物理发泡剂的发泡方法因其符合环保的要求,日益受到重视。 www.fabiao.net 7. If you add enough inert gas to make it 1 bar for the total pressure, 27bar you go from 0. 27 2701bar to 0. 2701. 如果你加入惰性气体,使得总的压强为1个大气压,那么水银的蒸汽压就会从0。,变成0。 open.163.com 8. Inert gas. 充入惰性气体。 chinese.wsj.com 9. Yeah. So, I have a lot of inert gas here. 所以我这里有大量的惰性气体。 open.163.com 10. Numerical investigation of detonation sweeping on an interface of inert gas and its decoupling 爆轰波平掠惰性气体界面及其解耦现象的数值研究 scholar.ilib.cn 1. Consumable Electrode Inert-Gas Arc Welding of Nitric Acid Storage Tank Made of Aluminum Plates 铝制硝酸储罐的熔化极气体保护焊接 www.ilib.cn 2. Welding and allied processes - Joint preparation - Metal inert gas welding and tungsten inert gas welding of aluminium and its alloys 焊接和相关工艺.接头的准备.铝及其合金的金属极惰性气体保护焊和钨极惰性气体保护焊 www.mapeng.net 3. leading inert gas into the cavity and starting a sputtering aluminum target to carry out ion impact and implant aluminum; 将惰性气体通入该腔体中,启动溅镀铝靶材,进行离子冲击并植入铝; ip.com 4. Methods for chemical analysis of molybdenum--The inert gas fusion-coulometric titration method for the determination of oxygen content 钼化学分析方法惰气熔融库仑滴定法测定氧量 www.zftrans.com 5. Standard Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity Method 用惰性气体熔解热传导法测定钛合金中氢的标准试验方法 www.isres.com 6. blowing ammonia gas or epoxy gas and inert gas into the reactor, and carrying out chemical deacidification and physical deacidification; 再向反应器中吹入氨气或环氧气体及惰性气体,进行化学脱酸和物理脱酸; ip.com 7. Specification for tungsten electrodes for inert gas shielded arc welding and for plasma cutting and welding 惰性气体保护电弧焊用和等离子切割与焊接用钨电极规范 www.mapeng.net 8. Chlorofluorohydrocarbons for industrial use; Determination of inert gas content; Gas chromatographic method; General principles 工业用氯氟代烃.惰性气体含量的测定.气相色谱法.一般原理 www.mapeng.net 9. Keep under . . . (inert gas to be specified by the manufacturer) 保存在惰性气体中(气体种类由生产厂家指定) bbs.translators.com.cn 10. Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) 钢和铁.镍含量的测定.惰性气体融合后热电导测量法(常规方法) www.mapeng.net 1. Nickel base alloy powder; Determination of oxygen content; Pulse heating inert gas fusion coulometric titrimetric method 镍基合金粉化学分析方法脉冲加热惰性气熔融库仑滴定法测定氧量 bz.qs100.com 2. Numerical simulation of two-phase gas-droplet flow in combustor generating inert-gas by fuel burning 燃油惰气发生器燃烧室气雾两相流场数值模拟 www.ilib.cn 3. Standard Test Method for Determination of Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique 用惰性气体熔融技术测定钛和钛合金中氮含量的标准试验方法 www.mapeng.net 4. Design and Flow Field Analysis of a New-type Combustor Generating Inert Gas by Fuel Burning 新型燃油惰气发生器燃烧室的设计及流场分析 www.ilib.cn 5. Chemical analysis of ferrous materials - Determination of oxygen in steel and iron - Infrared method after fusion under inert gas 钢铁材料的化学分析.钢和铁中氧的含量测定.在惰性气体中熔解后红外法 www.mapeng.net 6. Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels - Classification 焊料.非合金和细晶粒钢和钨极惰性气体保护焊用焊条,焊丝和沉积物.分类 www.mapeng.net 7. Evaluation on the uncertainty for determining nitrogen in iron steel by inert gas fusion-thermal conductivity method 惰气熔融热导法测定钢铁中氮的不确定度评定 service.ilib.cn 8. Comparison of microstructures of plasma welded, tungsten inert gas welded and laser welded titanium 等离子弧焊、钨极气体保护焊、激光焊焊接牙科纯钛显微结构比较 www.ilib.cn 9. The Study of Two Different Combining Rules for Repulsive Potentials of Li and Inert Gas Systems 锂与惰性气体相互作用势组合规则的研究 www.ilib.cn 10. Mathematical Modeling and Solution about Inert Gas as Cushion Gas for Aquifer Underground Gas Storage 含水层型地下储气库惰性气体作垫层气的数学建模与求解 www.ilib.cn 1. The Study of Two Different Combining Rules for Repulsive Potentials of Li and Inert Gas Systems 锂与惰性气体相互作用势组合规则的研究 www.ilib.cn 2. Mathematical Modeling and Solution about Inert Gas as Cushion Gas for Aquifer Underground Gas Storage 含水层型地下储气库惰性气体作垫层气的数学建模与求解 www.ilib.cn 3. Recommended practice for inert gas shielded arc welding (aluminium and aluminium alloy) 不活性气体电弧焊接操作标准(铝及铝合金) www.ybqi.gov.cn 4. The simulative research of cooling and dehumidification in the design of long-distance inert gas generator 远程惰气发生器降温减湿的模拟研究 www.ilib.cn 5. The Pulse Heating Inert Gas Fusion-TCD Method for the Determination of Hydrogen Content in Steel 脉冲加热惰气熔融-热导池法测定钢中氢量 www.ilib.cn 6. Determination of oxygen and nitrogen by programmed temperature method after fusion in inert gas 惰气熔融程序升温法测定氧氮分量图谱分析 service.ilib.cn 7. determination of oxygen content - inert gas fusion coulometric method 惰气熔融库仑法测定氧量 www.ichacha.net 8. Numerical Simulation of Flammable Pipe Gas Explosion Inhibition with Inert Gas 惰性气体抑制管道中可燃气体爆炸的数值模拟 ilib.cn 9. The ventilation and ducts'requirements for inert gas fire extinguishing system 惰性气体灭火系统的通风和管道要求 www.ilib.cn 10. Breeze Explosion-proof Technology in Boiler Pulverizing System with Inert Gas 采用惰化介质防止锅炉制粉系统煤粉爆炸 ilib.cn 1. design for energy fluids: fuel GAS, inert GAS, cooling water, compressed air and waste water 能源介质设计(到接点):燃气、保护气、冷却水、压缩空气和废水 dict.ebigear.com 2. Single chip computer controlled pulsed metal inert-gas arc welding machine 新型单片机控制熔化极脉冲氩弧焊机 www.ilib.cn 3. Convective heat transfer enhancement by inert gas injection 引入惰气强化对流传热过程研究 www.ilib.cn 4. Mechanism of Pumping Inert Gas into Mine Fire Area for Inhibition of Methane Explosion 充注惰气抑制矿井火区瓦斯爆炸机理 service.ilib.cn 5. Discussions on Inert Gas Taken as Cushion Gas in Underground Gas Storage with Aquifer 含水层型地下储气库惰性气体作垫层气概述 www.ilib.cn 6. Remelt hardening technology of camshaft with tungsten inert gas arc 凸轮轴的钨极氩弧重熔淬火工艺 service.ilib.cn 7. Defect Production in Silicon Carbide by Inert-gas-ion Irradiation 碳化硅中惰性气体离子辐照引起缺陷的研究 www.ilib.cn 8. An Analysis of the Gas Replacement of the Oil Tanker's Inert Gas System 油轮惰性气体系统中的气体置换分析 www.ilib.cn 9. approval of inert gas system temporarily suspended 惰性气体临时停用批准 www.zftrans.com 10. Standard for inert gas clean agent extinguishing system 惰性气体清洁剂灭火系统标准 www.bzw.com.cn 1. Titanium and Titanium ally rods and wires for inert gas shielded arc welding 惰性气体保护用汰及汰合金焊棒和焊丝 www.china-weldnet.com 2. Girth Welding of Control Rod by Pulse Tungsten-Inert-Gas Welding Process 控制棒环焊缝的脉冲钨极氩弧焊 www.ilib.cn 3. Experiments and Numerical Simulation of Inert Gas Vent 惰性气体泄爆实验与数值模拟 www.ilib.cn 4. Tungsten electrodes for inert gas shielded arc welding 惰性气体电弧用钨棒 www.china-weldnet.com 5. Effect of inert gas on evaporation and condensation process at high vacuum 惰性气体对高真空蒸发与冷凝过程的影响 www.ilib.cn 6. Three ways to fulfil the replacement of vessels and pipelines by inert gas 采用惰性气体对容器、管道置换的三种方法 www.ilib.cn 7. Damage Production by Inert-gas-ion Irradiation in Some Candidate Materials to Fusion Reactors 聚变堆候选金属材料的惰性气体离子辐照损伤的研究 service.ilib.cn 8. Research on new single-pole pipe-board auto inert gas arc welding machine 新型单柱式管—板全自动氩弧焊机的研制 www.ilib.cn 9. Copper and Copper ally rods and wires for inert gas shielded arc welding 惰性气体保护电弧焊用铜及铜合金焊棒和焊丝 www.china-weldnet.com 10. consumable electrode inert-gas arc welding 熔化电极惰性气体保护焊 www.mapeng.net 1. Application of Top-Slag Refining in Inert Gas Protecting 惰性气体保护下顶渣精炼的应用 service.ilib.cn 2. Analysis on residual stress of hybrid laser-tungste inert gas arc welding of magnesium alloy 激光-氩弧复合热源焊接镁合金残余应力分析 www.ilib.cn 3. Inert gas arc welding using a non-consumable electrode 非熔化极惰性气体保护电弧焊 news.dic123.com 4. Take Cheap Inert Gas as Cushion Gas of Gas Storage with Salt Caves 用廉价的惰性气体作为盐穴储气库垫气 www.ilib.cn 5. Surface hardening of cast iron by tungsten inert gas arc 铸铁表面钨极氩弧硬化 www.ilib.cn 6. a discharge medium that contains the mercury and the inert gas enclosed in the luminous tube (10); 包含封入灯管10内的汞和惰性气体的放电介质; ceshi868.com 7. Inert-gas shielded tungsten arc welding 钨极惰气保护焊 www.sinobay.com 8. NumericalAnalysis on Tungsten Inert Gas Welding Arc 钨极氩弧焊焊接电弧数值分析 www.ilib.cn 9. Study on the on-board inert gas generator system of military aircraft 军用飞机机载制氮系统研究 www.ilib.cn 10. The vacuum distillation in the presence of inert gas 惰气存在下的热敏物料真空精馏 service.ilib.cn 1. Simulation Study on the Process of Pumping Inert Gas into Fire Area Roadway 火区巷道充注惰气过程的模拟研究 www.ilib.cn 2. IGGS Inert Gas Generation System 惰性气体发生系统 wenku.baidu.com 3. Inert gas shielded metal arc welding 金属极惰气保护焊 www.sinobay.com 4. Shielded inert gas metal arc welding 惰性气保护金属弧焊法 news.dic123.com 5. QJ Central gas supply, . Also inert gas 集中气体供应及惰性气体供应 www.eeso.net 6. GTAW Inert-Gas Tungsten Arc Welding 气体保护钨级电弧焊 wenku.baidu.com 7. Inert gas tungsten arc welding 钨板惰性气体保护焊 news.dic123.com 8. Tungsten arc inert gas welding 惰性气体保护钨极电弧焊 news.dic123.com 9. special survey of inert gas system 惰性气体系统特殊检验 www.51ielts.com 10. metal arc inert gas welding (MIG) 金属惰气电弧焊 www.bing.com 1. Inert gas plant Oxygen plant 惰性气装置制氧装置 wenku.baidu.com 2. Inert Gas Isotopic Studies and Dynamic Background of Cenozoic Ore-forming Process in China 中国新生代成矿作用的惰性气体同位素研究与动力学背景 service.ilib.cn 3. metal arc inert gas welding 金属惰性气体电弧焊 www.bing.com 4. AIGSS Annual Inert Gas System Survey 年度惰性气体系统检测 aimao.jobui.com |
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