| 单词 | 半衰 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 | 半衰 noun —half-life nSee also:半 n—half n 半 adj—semi- adj 半—incomplete • (after a number) and a half 衰—wane • become weak or feeble • mourning garments
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剛才很多同事也說過鈈元素的 半衰期是 很長的，可以遺害很多、很多年。 legco.gov.hk | Many colleagues just [...] mentioned that the half-life of uranium [...]is very long. legco.gov.hk |
由于半衰期短（约为数小时或数天），这些昂贵而且常常稀缺 的放射性同位素每推迟一小时都会失去效用。 daccess-ods.un.org | Due to the short half-life (on the order [...] of hours or days), these expensive and often scarce radioisotopes lose their usefulness every hour they are delayed. daccess-ods.un.org |
作为副产品产生的元素的同位素通常比作为初 始燃料的铀有较短的半衰期。 worldinfo.org | The isotopes of the elements created as byproducts [...] generally have shorter half lives than the initial [...]plutonium used as fuel. worldinfo.org |
针对转染或基因治疗，通过优化至纳米颗粒及脂质体上的加载，改善DNA或寡核苷酸的传输 及 半衰 期。 malvern.com.cn | Improve the delivery and half-life of DNA or oligonucleotides for transfection or gene therapy by optimizing their loading onto nanoparticles and liposomes. malvern.com |
但是基于科学和数据的政策在联合国 的 半衰 期 很 短。 project-syndicate.org | But policies based on science and [...] data have a short half-life at the UN. project-syndicate.org |
至於 BDE-209，歐洲食物安全局認為，由於這種同系物在動物及人體 的 半衰 期相若，因此，進行人體健康風險評估時，可採用動物研究所得的外部 [...] 劑量水平( 基準劑量可信限下限)，即每日每公斤體重 1.7 毫克。 cfs.gov.hk | EFSA stated that [...] for BDE-209 the half-life in animals [...]and humans is similar, and therefore the external dose level (BMDL [...]), 1.7 mg/kg bw/day, as obtained from animal studies can be applied for the human health risk assessment. cfs.gov.hk |
因此，存储是放射性废物管理重要的一步，尽管预计存储时间会有很大的不 同(如短效半衰期放 射性核素会迅速衰减，因此，几个月后，就基本上消失殆尽； 有些同位素需要储存约三个世纪的时间 ； 半衰 期为 24 000 年的钚可通过后处理 技术事先去除)。 daccess-ods.un.org | Thus, storage is an essential step in the management of radioactive waste, although the targeted duration of storage will [...] vary hugely (e.g., [...] radionuclides with short half-lives will decay away rapidly, so after a few months there will be essentially none left; a number of isotopes require storage for about three centuries; plutonium with a half-life of 24,000 years [...]can be removed beforehand [...]by using reprocessing technologies). daccess-ods.un.org |
奈非那韦在两组中的清除率和半衰期 相 似，表明该药物可通过肝外CYP或非-CYP途径介导。 tipschina.gov.cn | Clearance and half-life of nelfinavir [...] was similar in both groups, indicating that it could be mediated by extra-hepatic CYP or non-CYP pathways. tipschina.gov.cn |
在醫院或從事研究的層面，有關人員在進行工作時，根本亦會自行處 理很多放射性的物料，而無須特別安排存放在別的地方，這是因為現在採用 的新品種的半衰期較短；從前所採用的放射性物質 的 半衰 期 則 較長，所以須 貯存在特別安排的地方。 legco.gov.hk | It does not need to be stored in any special place. This is because the [...] new type used now has [...] a shorter half life, while the radioactive substance used before has a longer half life and therefore [...]must be stored in a special place. legco.gov.hk |
這包括了半衰 期長而又能夠與環境達致平衡的核素。 weather.gov.hk | This includes [...] radionuclides having a long half-life and capable [...]to come into equilibrium with the environment. weather.gov.hk |
与对照组相比，HRN（TM）小鼠静脉给药多西他赛、咪达唑仑和茶碱产生较大幅度的清除率下降和较大幅度 的 半衰 期 延 长。 tipschina.gov.cn | Intravenous dosing resulted in a greater decrease in clearance and a greater increase in half-life for docetaxel, midazolam and theophylline in the HRN(TM) mouse as compared to the controls. tipschina.gov.cn |
此外，亦可把受輻射污染的食物存放較長時間，以便當中 的 半衰 期 較 短的放射性核素可進行放射性衰變。 cfs.gov.hk | It is also possible to store contaminated food for prolonged times to allow radioactive decay of short-lived radionuclides. cfs.gov.hk |
该种半衰期氚 发光涂料可持续发光四至五年之久。 oris.ch | The half-life of Tritium luminous [...] pigments is four to five years. oris.ch |
为此，正在考虑短半衰期放 射性同位素源。 daccess-ods.un.org | To this end, short half-life radioisotope [...] sources are being considered. daccess-ods.un.org |
歐洲食物安 全局根據基準劑量可信限下限，測算實驗動物的身體負荷量，和 個別同 系物在人體的吸收率和排出半衰期， 從而計算出“ 人體長期膳食攝入量” 的數值。 cfs.gov.hk | EFSA calculated some values called “chronic human dietary intakes” which were derived by taking into account the body burden in the experimental animals at BMDL cfs.gov.hk |
半衰期约 30 年的长效铯和锶放射性核素的污染，损害了辐射卫生状况 [...] (超过允许水平的放射性核素污染了农业和林业产品) daccess-ods.un.org | contamination with long-lived caesium and strontium [...] radionuclides with halflives of approximately [...]30 years, which damages the radiation [...]hygiene situation (contamination of agricultural and forestry products with higher-thanpermitted levels of radionuclides) daccess-ods.un.org |
此 外 ， 还 有 显 著 比 例 的 赭 曲 霉 毒 素 A 毫 无 改 变 便 排 出 体 外 。 赭 曲 霉 [...] 毒 素 A 能 与 血 清 大 分 子 紧 密 结 合 ， 因 此 可 以 在 非 反 刍 动 物 和 人 类 体 [...] 内 有 很 长 的 血 清 半 衰 期 ( 猪 :72 至 120 小 [...]时 ， 人 类 个 案 : 840 小 时 ) 。 cfs.gov.hk | Ochratoxin A has a long serum half-life in non-ruminant [...] animals and in humans (72-120 h in pigs, 840 h in a human subject) on the basis of its [...] strong binding to serum macromolecules. cfs.gov.hk |
以大 鼠的研究結果推斷，個別四溴至六溴聯苯醚同系物在人體內 的 半衰 期估 計可長達數年。 cfs.gov.hk | By extrapolation of the results in [...] rats, the human half life has been estimated [...]to be in the range of several years for [...]individual tetrabrominated to hexabrominated congeners.1,5 10. cfs.gov.hk |
至於醫學界 使 用的非 密 封 [...] 的放射性物質，該類放射性物質的半 衰 期多數很 短 ，其 輻射量會在短 時 [...]間之內消失 ，而該類物質的輻射量消失 後，可作普通 廢料一般 處 置。 legco.gov.hk | As for unsealed radioactive substances [...] used in the medical sector, they were [...] mostly of very short half-lives and would [...]lose their radioactivity within a short time [...]frame, after which they could be disposed of as normal wastes. legco.gov.hk |
特别是，与甲基汞40至50天的半衰期相 比，乙基汞 的 半衰 期 很短（6天，95％CI：3-10天），这使乙基汞在血液中的暴露时间相对较短，同时，至少间隔四周才接种疫苗时就会防止出现累积情况。 who.int | In particular, the half-life of ethyl mercury is short (6 days; [...] 95% CI: 3-10 days) compared with 40-50 days for methyl mercury, [...]making exposure to ethyl mercury in blood comparatively brief and preventing accumulation when vaccines are administered at least four weeks apart. who.int |
教育部门还应对了该双年度期间出现的各种重大挑战，尤其是全球经济的严 重 衰退 和前途的变幻莫测。 unesdoc.unesco.org | It also responded to key challenges that emerged during the biennium, in particular the severe global economic downturn and uncertainty about the future. unesdoc.unesco.org |
但這些條例並沒有 影響工業發展，而其他國家也沒有任何證據顯示這些反歧視措施會引起經 濟 衰 退。 legco.gov.hk | But those legislation did not upset industrial development and nowhere is there any proof in other countries that such anti-discrimination measures would cause economies to falter. legco.gov.hk |
該等前瞻性陳述乃反映中芯高級管理層根據最佳判斷作出的估計，存在重 [...] [...] 大已知及未知風險、不確定性，以及其他可能導致中芯實際業績、財政狀況或經營結果與前 瞻性陳述所載資料存在重大差異的因素，包括（但不限於） 與 半 導 體 行業周期及市場狀況有 關的風險、全球經濟衰退及 其對中國經濟的影響、激烈競爭、中芯客戶能否及時接收晶圓産 品、能否及時引進新技術、中芯抓住在中國發展機遇的能力、中芯於加強全面産品組合的能 [...] [...] 力、半導體代工服務供求情況、行業産能過剩、設備、零件及原材料短缺、未決訴訟的頒令 或判決、能否取得生産力，和終端市場的財政穩定。 cre8ir.com | These forward-looking statements are necessarily estimates reflecting the best judgment of SMIC’s senior management and involve significant risks, both known and unknown, uncertainties and other factors that may cause SMIC’s actual performance, financial condition or results of operations to be materially different from those suggested by the forward-looking statements including, among others, risks [...] associated with [...] cyclicality and market conditions in the semiconductor industry, the downturn in the global economy and the [...]impact on China’s [...]economy, intense competition, timely wafer acceptance by SMIC’s customers, timely introduction of new technologies, SMIC’s ability to capture growth opportunities in China, supply and demand for semiconductor foundry services, industry overcapacity, shortages in equipment, components and raw materials, orders or judgments from pending litigation, availability of manufacturing capacity and financial stability in end markets. cre8ir.com |
在没有适当的先行 [...] 存在的社会保护机制的情况下，国家对社会保护的投资不太能够应对经 济 衰 退的 影响，尽管仍对受危机影响最严重的人提供了一种重要支持。 daccess-ods.un.org | Where no adequate pre-existing social protection mechanisms were in place, States’ investments in social protection [...] were less able to respond to the effects of [...] the economic downturn, although they [...]still provided an important form of support [...]to those most affected by the crises. daccess-ods.un.org |
美洲国家组织(美洲组织)成员国铭记着国际社会推动和采取具体措施在世 界所有国家促进和平与非暴力文化的决心，以及裁军与不扩散教育可以在采取此 种措施方面做出的重大贡献，并回顾在《美洲安全宣言》中，各国重申其对军备 控制、裁军和不扩散所有大规模毁灭性武器的承诺，通过了题为“ 南 半 球 裁 军和 不扩散”的 AG/RES.2533(XL-O/10)号决议。 daccess-ods.un.org | The States members of the Organization of American States (OAS) adopted resolution AG/RES. 2533 (XL-O/10) entitled “Disarmament and non-proliferation in the hemisphere”, bearing in mind the determination of the international community to promote and adopt specific measures to foster a culture of peace and non-violence in all countries of the world and the significant contribution that disarmament and non-proliferation education can make in adopting such measures, and recalling that, in the Declaration on Security in the Americas, the States reaffirmed their commitment to arms control, disarmament, and the non-proliferation of all weapons of mass destruction. daccess-ods.un.org |
秘书长在其报告(A/C.5/59/2 和 Corr.1,第 94 和第 95 段)中，在他提出法院 法官和两法庭法官的薪酬应从 160 000 美元增加到 [...] 177 000 美元的建议后说，大 会在其第 53/214 [...] 号决议第八节中决定把国际法院法官的退休养恤金定为年薪的 一半，根 据这项决定，在 2005 年退休的法院法官的年度退休福利，将由每年 [...]80 000 美元增加到 88 500 美元，自 2005 [...]年 1 月 1 日起生效，而且，根据国际法院法官 基薪拟议增加额，建议在付养恤金增加 10.6%，自 2005 年 1 月 1 日起生效。 daccess-ods.un.org | In his report (A/C.5/59/2 and Corr.1, paras. 94-95), the Secretary-General, following his recommendation that emoluments of the members of the Court and the judges of the Tribunals be increased from US$ 160,000 to US$ 177,000, stated that, based on the decision of the General Assembly contained in section VIII of its resolution 53/214 to set [...] the retirement pension for the members [...] of the Court at one half of the annual salary, [...]the annual retirement benefit of a [...]member of the Court retiring in 2005 would increase from US$ 80,000 per annum to US$ 88,500 with effect from 1 January 2005 and that, based on the proposed increase in the base salary of the members of the Court, it was recommended that pensions in payment be increased by 10.6 per cent, effective 1 January 2005. daccess-ods.un.org |
一半以上 的经常预算都集中在四个优先事项领域——扫盲、教师、就业技能以及全 [...] 部门的政策和计划制订，并且在活动计划中越来越重视地域针对性，该部门重新调整重点的 做法正在使其逐步扩大在国家一级的能见度和影响。 unesdoc.unesco.org | With over half of the regular budget [...] concentrated on four priority areas – literacy, teachers, skills for the world of work, [...]and sector-wide policy and planning – and increased geographical targeting in the design of activities, the Sector’s newly focused approach is enabling it to scale up its visibility and impact at country level. unesdoc.unesco.org |
根据《关于教科文组织与各基金会及其他类似机构之关系的指示》（第 IV.2 条）与教 [...] 科文组织保持关系的组织以及与教科文组织没有正式关系的组织参加大会的问题按《大会议 事规则》第 7 [...] 条行事，该条规定，“经执行局推荐及出席并参加表决之会员国三分之二多数 通过，大会可接纳非政府或半政府 国际组织代表作为观察员列席大会或大会所属专门委员会 [...]之特定届会”。 unesdoc.unesco.org | The participation of organizations maintaining relations with UNESCO under the “Directives concerning UNESCO’s relations with foundations and similar institutions” (Article IV.2), and of organizations not having official relations with UNESCO, is governed by Rule 7 of the Rules of Procedure of the General Conference which stipulates that “the General Conference, on the recommendation of the Executive Board and by a two-thirds majority of Members present and voting, may [...] admit as observers at specified sessions of the [...] Conference or of its commissions [...]representatives of international non-governmental [...]or semi-governmental organizations”. unesdoc.unesco.org |
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