| 单词 | 双壳类 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 | 双壳类 —bivalve (often used)less common: Lamellibranchia See also:双 num—two num 双 adj—dual adj • both adj 壳 n—shell n 壳—crust (earth's crust etc) • carapace
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在四个海洋双壳类中（ 图6），在上世纪九十年代 占 双壳类 总 产 量一半以上的 蛤和鸟蛤产量最近加快衰退速度。 fao.org | Of the four marine bivalve groups (Figure 6), clams and cockles, which in the early 1990s contributed more than half of the overall bivalve catches, have [...] recently accelerated their rate of decline. fao.org |
诸如上述这种在生态系统这一层次产生的影响，往往涉及的是具体的物种或具体的营养 级(例如，滤食性双壳类动物 对食鱼类动物)。 unesdoc.unesco.org | A variety of models is available for determining the persistence [...] of organic pollutants (Roberts et [...] al., 1981), the fate of inorgan ic compounds (e.g. Dolan [...]and Bierman, 1982), the speciation [...]of metals (e.g. MINTEQAI – Brown and Allison, 1987) and chemical spills (Brown and Silver, 1986). unesdoc.unesco.org |
水产养殖推动了原来主要从 [...] 野外捕捞而现在主要养殖的产品的消费，降低了价格，并使产品的商业化水平大 大提高，例如对虾、鲑鱼、双壳类、 罗非鱼、鲶鱼和鱼芒 。 fao.org | Aquaculture has pushed the demand for, and consumption of, species that have shifted from being primarily wild-caught to being primarily aquaculture-produced, with a decrease in their prices [...] and a strong increase in their commercialization, such as [...] for shrimps, salmon, bivalves, tilapia, catfish [...]and Pangasius. fao.org |
牡蛎、贻贝、蛤、扇贝和其他双 壳贝类物种 在海里和泻湖中的养殖环境以天然饵料为食生长。 fao.org | Oysters, mussels, clams, [...] scallops and other bivalve species are grown [...]with food materials that occur naturally in their [...]culture environment in the sea and lagoons. fao.org |
虽然饲料通常被视为是限制水产养殖发展的一个主要因素， 但目前食用水产品养殖中有三分之一（2000万吨）无需人工投喂， 如 双壳类 及滤 食性鲤科鱼类。 fao.org | While feed is generally perceived to be a major constraint to aquaculture development, one-third of all farmed food fish production (20 [...] million tonnes) is currently achieved without artificial [...] feeding, as is the case for bivalves and filter-feeding carps. fao.org |
尽管有一些有限成功的情况，但海水 双壳贝 类生产潜力依然几乎完全未开发。 fao.org | In spite of some limited successes, [...] the potential for bivalve production in marine [...]waters remains almost completely unexplored. fao.org |
欧洲几个重要生产国近来停止扩张，或甚 至收缩，特别是海水双壳贝类养殖。 fao.org | Several important producers in Europe have recently ceased expanding or have even contracted, [...] particularly in the marine bivalve sector. fao.org |
上世纪八十年代头五年，海水双壳贝 类 占 总 产 量约95%，由于鱼类养殖的发展（特别是澳大利亚的大西洋鲑和新西兰的大鳞鲑）， 双壳类目前占该区域总产量不到65%。 fao.org | Marine bivalves accounted for about 95 percent of the total produced in the first half of 1980s but, reflecting the development of the finfish culture sector (especially Atlantic salmon in Australia and chinook salmon in New Zealand), they currently [...] account for less than [...]65 percent of the region’s total production. fao.org |
2010年世界食用鱼养殖产量的三分之 一未使用饲料，为双壳贝类和滤 食性鲤科鱼类。 fao.org | One-third of the world’s farmed food [...] fish harvested in 2010 was achieved without the use of feed, through [...] the production of bivalves and filter-feeding carps. fao.org |
鲜活双壳贝类软体 动 物标准规定的适当措施可纳入扇贝肉标准以控制生物毒素。 codexalimentarius.org | Appropriate measures from the Standard for Live and Raw Bivalve Molluscs could be transferred to the standard for scallop meat for the control of biotoxins. codexalimentarius.org |
介 贝 类 水 产 动 物 泛 指 所 有 有 壳 的 水 栖 动 物 ， 一 般 可 分 为 四 类 ， [...] 即 甲 壳 类 ( 如 蟹 、 小 龙 虾 、 龙 虾 和 [...] 虾 ) 、 腹 足 类 ( 如 鲍 鱼 、 笠 贝 、 蜗 牛 和 蛾 螺 ) 、 双 壳 类 ( 如 蚝 、 蚬 、 贻 贝 和 扇 贝 ) 及 头 足 类 ( 如 章 鱼 、 [...]鱿 鱼 和 乌 贼 ) 。 cfs.gov.hk | Shellfish is a broad term for all aquatic animals that have a shell of some kind. It generally divided into four groups namely crustaceans (examples: crabs, crayfish, lobster, and shrimp), gastropods (examples: [...] abalone, limpet, [...] snail, and whelk), bivalves (examples: oysters, clams, mussels, and scallops), and cephalopods [...](examples: octopus, squid, and cuttlefish). cfs.gov.hk |
双壳贝类产量 占水产养殖总产量的比重 在上世纪八十年代从48.5%快速下滑后，上世纪九十年代和本世纪头十年期间在 [...] 14%和21%之间波动。 fao.org | Bivalve production fluctuated [...] between 14 and 21 percent of total aquaculture production in the 1990s and 2000s, after dropping [...]rapidly in the 1980s from 48.5 percent. fao.org |
潮间带和浅潮海底动物（如双壳类软 体 动 物和甲壳动物）尤其容易受到伤害，但自由游动 的鱼类很少被发现受到此类条件的危害。 itopf.org | Intertidal and shallow subtidal benthic fauna, su ch a s bivalve mo lluscs and crustacea, are particularly vulnerable, but on rare occasions free swimming fish have also been observed to succumb under these conditions. itopf.org |
双壳贝类在总 产量的份额从1980年61%持续下降到 2010年的26.2%。 fao.org | The share of bivalves in total production [...] decreased continuously from 61 percent in 1980 to 26.2 percent in 2010. fao.org |
在近期的入侵物种中，包括几种底栖藻类、SAV、有毒腰鞭毛虫(例如澳大利亚的 涡鞭毛藻)、双壳类(例如 五大湖的斑纹贻贝和旧金山湾的中国蛤蜊)、多毛类环节动物、 [...] 栉水母类、桡足类甲壳动物、蟹和鱼类。 unesdoc.unesco.org | Most water quality models emphasize "bottom-up" (nutrient) control on biogeochemical processes with minimal focus on "top-down" (consumer) control [...] and ecological feedback processes that [...] influence flows of energy and nutrients and [...]link primary producer and consumer populations [...](e.g., Kemp and Bartleson, 1991, Ross et al. unesdoc.unesco.org |
6.水的透明度 水透明度降低的原因有多种，包括海岸侵蚀和沉积物运移、沉积物悬浮、浮游植物 的生长、滤食性双壳类动物 的过度捕捞、来自点源(例如污水排放)和非点源(例如地表水 和地下水的流动、大气沉降等)的营养盐和有机物质的输入。 unesdoc.unesco.org | Available large data sets derive and drive these models, though calibration is usually done using informal trial-and-error methods or linear optimisation programming approaches (e.g., Lung, 1989). unesdoc.unesco.org |
滤食性双壳类贝类/软体动物，例如牡蛎、贻贝、蛤蜊和鸟蛤，很易受细菌和病毒污 染，原因是它们摄食时要过滤比它们本身重量大许多倍的大量海水，在它们身上会富集 和保留许多食物颗粒，包括含有病原微生物的排泄物颗粒。 unesdoc.unesco.org | Data management groups for the purposes of weather prediction, improved marine services and more efficient and safe marine operations have evolved two parallel and interconnected procedures for processing meteorological and physical oceanographic data. unesdoc.unesco.org |
该代表团认为，考虑到与产品相关的 特定风险，特别是生物毒素问题，此类扇贝最好依照鲜 活 双壳 贝 类 软 体动物标准管理。 codexalimentarius.org | The Delegation expressed the view that these scallops should best be dealt with in terms of the Standard for Live and Raw Bivalve Molluscs due to the specific risks associated with these products, in particular biotoxins. codexalimentarius.org |
食典通过了在步骤 8 提出的海洋双壳软体动物（牡蛎和扇贝除外）及头足冈 [...] （去内脏）中每公斤 2 毫克镉的最大限量。 codexalimentarius.org | The Commission adopted the maximum level of 2mg/kg for [...] cadmium in marine bivalve molluscs (excluding [...]oysters and scallops) and in cephalopods [...](without viscera) as proposed at Step 8. codexalimentarius.org |
大多数人被诊断 为双重病状――精神类疾病和上瘾。 daccess-ods.un.org | Most of them are [...] diagnosed as suffering from a dual prognosis – mental illness [...]and addiction. daccess-ods.un.org |
西安双特智 能传动有限公司项目落户于西安市高新区，占地面积264亩，总投资10亿元人民币，主要是通过引进吸收卡特彼勒先进的CX系列重型液力自动变速器（AT）技术，进行重型AT变速器的生产、销售和再研发，并向卡特彼勒集团供应其所需的齿 轮 类 、 壳 体 类 、 杂 件类等机械零部件。 shjok.com | LTD of investment projects in xian city high-tech zone, covering an [...] area of 264 mu, total [...] investment is 1 billion yuan RMB, mainly through the introduction and absorption of advanced caterpillar CX series heavy-duty hydraulic automatic transmission (AT) technology, the heavy AT transmission the production, sales and development, and again to the caterpillar group they need supply gear kind, shell of class, miscellaneous of mechanical parts. shjok.com |
随着鱼粉价格继续上涨，浓缩的植物蛋 [...] 白（大豆蛋白浓缩、加拿大油菜蛋白浓缩、豌豆蛋白浓缩和玉米/小麦麸皮）将在 高营养层养殖物种和甲壳类水产 饲料中得到比一般植物蛋白粉更显著的地位。 fao.org | With the continued rise in the fishmeal price, plant protein concentrates (soybean protein concentrate, canola protein concentrate, pea protein concentrate and corn/wheat gluten meals) will gain [...] increasing prominence over regular plant protein meals within aquafeeds for high-trophic-level [...] cultured species and crustaceans. fao.org |
双方的此类指控 和反指 控应转化为双方接受能真正解决伴生问题和关切的有效安排，以便建立信任。 daccess-ods.un.org | Such allegations and counter-allegations [...] by the parties should be transformed into mutual acceptance of effective arrangements [...]that genuinely address attendant issues and concerns in order to generate confidence. daccess-ods.un.org |
就弹药而言，这种检查表 登记的内容应包括批号、类型、口径、材料、数量、 弹 壳 上 和包装上的标识，包 括弹壳和包装的详细图片及描述。 daccess-ods.un.org | For ammunition, such inspections sheets should include the lot number, type, calibre, material, quantity, markings on the cartridge and on the packaging, including detailed pictures and descriptions of the cartridge and the packaging. daccess-ods.un.org |
根据讨论情况，食典委同意通过第 7 部分生鲜双壳软体 动物及其相关定义，但将 第 [...] 13 部分龙虾及其相关定义退回步骤 6 征求意见，供鱼和渔业产品委员会下届会议审议。 codexalimentarius.org | In view of the discussion, the Commission agreed to adopt Section 7 [...] Live and Raw Bivalve Molluscs and [...]its relevant definitions, but to return Section [...]13 Lobsters and its relevant definitions to Step 6 for comments and consideration by the next session of the Committee on Fish and Fishery Products. codexalimentarius.org |
经合组织/发援会把对 联合国系统的非核心捐款归类为双边 援 助，原因是认为捐助国政府要对此种资金 的使用进行有效控制，联合国实体不是受援方，而是提供此种资金的渠道。 daccess-ods.un.org | OECD/DAC classifies non-core contributions to the United Nations system as bilateral aid because it [...] considers the use of [...]such funds to be effectively under the control of the donor Governments, with United Nations entities serving as a channel of delivery for those funds, as opposed to being recipients, of aid. daccess-ods.un.org |
目前为所有已毕业国家采取的平稳过渡措施分为三 大 类 ： ( a) 双边倡 议，例 如欧洲联盟根据其“除武器之外一切产品”倡议给予免关税免配额市场准入； [...] (b) 继续提供专供最不发达国家使用的资金，例如允许使用强化综合框架和全球 环境基金最不发达国家基金；(c) [...]联合国根据大会第 65/286 号决议的规定向已 毕业国家提供旅行支助。 daccess-ods.un.org | Existing smooth transition measures, which are available to all [...] graduated countries, were grouped [...] into three main categories: (a) bilateral initiatives, such [...]as the extension of duty-free, [...]quota-free market access by the European Union under its Everything but Arms initiative; (b) continued access to least developed countrydedicated funds, such as the extension of access to the Enhanced Integrated Framework, the Least Developed Countries Fund of the Global Environment Facility; and (c) the extension of United Nations travel-related support to graduated countries, pursuant to General Assembly resolution 65/286. daccess-ods.un.org |
CAC最近的工作包括：（i）通过活体 双壳 软 体动物和鱼酱的标 准；（ii）更新《鱼和渔业产品操作规范》中关于活 体 双壳 软 体 动 物以及熏鱼的部分；（iii）通过《应用食品卫生一般原则控制海产 品中致病弧菌物种的准则》。 fao.org | Recent work by the CAC has led to: (i) [...] adoption of Standards for [...] live and raw bivalve molluscs and fish sauce; (ii) updating of the Code of Practice for Fish and Fishery Products with sections on live and raw bivalve molluscs [...]and smoked fish; and (iii) [...]adoption of Guidelines on the Application of General Principles of Food Hygiene to the Control of Pathogenic Vibrio Species in Seafood. fao.org |
卖方应及时通知买方由此类更改引起的成本或交货计划方面的任何变化（如果有），由此在价格或其他条款方面的合理调整需以对本合同进行书面修订的方式（其中阐明所有 此 类 更 改 ）需 经 双 方 一 致同意。 veeco.com.cn | Seller shall promptly notify Buyer of any changes in cost or delivery schedule, if any, caused by such changes and an equitable adjustment [...] in price or other terms hereof shall be agreed upon in a written [...] amendment to this contract describing all such changes. veeco.co.jp |
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