| 单词 | 放射性物质 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔HARM〕The building is now unoccupied, and all radioactive or hazardous materials have been removed. 这幢楼现在空着，所有放射性物质和有害物质都清除了。朗文写作活用〔containment〕A structure or system designed to prevent the accidental release of radioactive materials from a reactor.防泄漏系统：一种为防止反应堆中放射性物质的事故性泄漏而设计的装置或系统美国传统〔decontaminate〕To make safe by eliminating poisonous or otherwise harmful substances, such as noxious chemicals or radioactive material.消毒：通过消除有毒的或有害的物质，如有毒的化学物质或放射性物质，使…安全美国传统〔emanation〕Chemistry Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.【化学】 射气：几种氡的同位素的放射性气体，是放射性物质衰变的产物美国传统〔encase〕The original plan was to encase a small amount of a radioactive substance in a protective steel container.原先计划是要将少量的放射性物质封存在一个钢质防护罩中。柯林斯高阶〔encase〕The original plan was to encase a small amount of a radioactive substance in a protective steel container.最初的计划是要将少量的放射性物质封存在一个防护钢罐里。外研社新世纪〔exercise〕Always exercise caution when handling radioactive substances.处理放射性物质时要时刻小心谨慎。剑桥高阶〔incidence〕There is a greater incidence of cancer in the families of radiation workers.接触放射性物质的工作人员，其家属的癌症发病率要更高一些。牛津搭配〔ingest〕Twelve workers have ingested radioactive substances well above the permitted maximum.12名工人摄入体内的放射性物质已大大超过允许的最高限度。英汉大词典〔locate〕The machine can accurately locate radioactive material.这台机器能准确地确定放射性物质的位置。牛津搭配〔mix〕Radioactive material was mixed in/up (with) the effluent.放射性物质被混入废水中。剑桥高阶〔opine〕Ernest Rutherford opined that his work on radioactive substances would be of little or no practical use.欧内斯特‧卢瑟福认为，他对放射性物质的研究工作没有多少或者没有实际用处。剑桥高阶〔planchet〕A small shallow metal container in which a radioactive substance is deposited for measurement of its activity.样品皿：用于存放放射性物质以测量其活性的小而浅的金属容器美国传统〔radioactive decay〕Spontaneous disintegration of a radioactive substance accompanied by emission of ionizing radiation in the form of particles and gamma rays.放射性衰变：放射性物质的自发的分裂，伴随有放出微粒或r射线形式的电离辐射美国传统〔radioactive〕Uranium is a radioactive material.铀是一种放射性物质。剑桥高阶〔radioactivity〕The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.辐射：由一种放射性物质发出的辐射，包括α粒子、原子核、电子、和γ射线美国传统〔radiochemistry〕The chemistry of radioactive materials.放射化学：研究放射性物质的化学美国传统〔radioimmunoassay〕The immunoassay of a radiolabeled substance, such as a hormone or an enzyme.放射免疫测定：用经放射性物质标记的物质（如荷尔蒙或酶）进行免疫测定美国传统〔radioimmunology〕The study of immunity by radiolabeling and other radiological methods.放射免疫：用放射性物质标记或其它放射学方法进行免疫研究美国传统〔radiology〕The branch of medicine that deals with the use of radioactive substances in diagnosis and treatment of disease.医疗辐射学：医学的一个分支，从事用放射性物质进行疾病诊断和治疗美国传统〔release〕The accident caused the release of radioactivity into the atmosphere.这次事故导致放射性物质泄漏到大气中。剑桥高阶〔substance〕Some workers had developed cancer after exposure to radioactive substances.有些工人接触放射性物质后得了癌症。麦克米伦高阶Chemical analysis showed that radioactive material was mixed in (with) the effluent.化学分析显示废水中混有放射性物质。剑桥国际Ernest Rutherford opined that his work on radioactive substances would be of little or no practical use.欧内斯特·拉瑟福德认为，他针对放射性物质所做的工作没有多少用处或者说没有实际用处。剑桥国际The leak of radioactive material has worried many people.放射性物质的泄露已令很多人担心。剑桥国际These special suits give 24 hours’protection against radiation/chemical weapons before needing decontamination.这些特殊的外套在放射性物质/生化武器未被净化前，能提供24 小时的保护作用。剑桥国际Uranium is a radioactive material.铀是放射性物质。剑桥国际 |
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