1.
Exempt Items of Radioactive Substances
放射性物质的豁免物品
2.
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
3.
radioactive half life
放射性物质的半衰期
4.
unsealed radioactive substance
非密封的放射性物质
5.
The importation of the radioactive isotope, radiation equipment and other radioactive materials should come up to applicable state regulations.
进口放射性同位素、射线装置和含有放射性物质的物品的，按照国家有关规定办理。
6.
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
7.
The search for new sources of energy has brought the danger of contamination
而对新能源的探索就难免会陷于放射性物质污染的困境，
8.
(the sending out of)rays and atomic particles from radioactive substances
（自放射性物质中放射出的）射线和原子粒子
9.
contaminated clothing,eg by radio-active material
受污染的衣物（如受放射性物质污染）
10.
giving off light or heat or radiation: the physical temperature of the emitting material.
散发出光、热或射线的：放射性物质的物理温度。
11.
Low Specific Activity Materials
低化活度放射性物质
12.
radioactive processing plant
放射性物质处理装置
13.
sealed source [radioactive substance]
密封源〔放射性物质〕
14.
high-level cell
高放射性物质工作室
15.
Regulation of radiation protection for handling nonsealed radioactive material
GB11930-1989操作开放型放射性物质的辐射防护规定
16.
make radioactive by adding radioactive material.
通过增加放射性物质使具有放射性。
17.
Apreliminary analysis of the properties of urinary radioactive metabolite was made.
初步分析了尿中放射性代谢物的性质。
18.
any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
"几种氡的同位素的放射性气体,是放射性物质衰变的产物."