There is a danger of serious contamination from radioactive waste.

射性废弃物有严重污染危险。

But hang on -- how do we know that radioactive atoms don't senesce?

但是，听清楚了—我们怎么知道射性原子不衰老？

People should keep away from the radioactive waste.

人们应远离射性废物。

Tritium is one of the mildest radioactive isotopes.

氚是辐射和缓射性同位素之一。

Formaldehyde, benzene, ammonia and radioactive pollution' superscale have seriously affected people's health.

甲醛、苯、氨气和射性污染超标已经严重影响了人们健康。

Objective To study the changes of GABA receptor during the acute poisoning of unsymmetrical dimethylhydrazine(UDMH).

目研究偏二甲基肼急性中毒时鼠γ氨基丁酸(GABA)受体变化。方法射性配体结合试验。

Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密,有射性。

There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.

这里有37讲，主要是地质年代学、射性同位素地球化学和稳定同位素地球化学。

Objective To develop a mouse model of premature ovarian failure (POF) by chemical treatment or radiotreatment.

目 探讨用化学药物及射性处理，建立小鼠卵巢早衰动物模型方法。

Monoclonal antibody agents can be obtained by coupling the chemotherapy agents, radioactive materials, biotoxin and monoclonal antibody.

将化疗药物、射性物质以及生物毒素等与单克隆抗体偶联就得到单克隆类药物。

A series of tracer experiments using P32 as a tagger and the radioautography had been carried out.

应用P32射性同位素进行示踪试验和鱼体射自显影,证实白鲫鱼种可以摄食和消化利用水绵。

Other radioactive elements have been discovered since: actinium, radiothorium and mesothorium, ionium, etc.

自那以后发现其他射性元素有：锄、射性钍和新针、，等等。

Documents leaked to this newspaper purport to reveal that radioactive waste is being illegally dumped on the site.

透露给报纸文件声称是揭露射性废料正被非法倾倒到此地一事。

Polluted water contains contaminants.

被污染水中含有射性污染。

27 PBq of radioactive material.

27个1015底夸克射性物质。

One drawback: a nonradioactive dye must be administered through the child's rectum before a CAT scan can be performed.

在做CAT射线之前，必须用一种非射性染料给孩子直肠染色。

The incidence rates of moderate and severe mouth cavity mucitis induced by radiation showed significant difference between the two groups.

两组中、重射性口腔粘膜炎发生率差异有显著性。

The sphene is a kind of stable mineral which is widely used in solidifing actinides separated from high level radioactive waste.

摘要榍石是一种稳定矿物，是人造岩石固化高射性废弃物较理想基材之一。

Objective The aim of this paper is to study the value of preoperative lymphography and radionuclide imaging for rectal cancer patients.

目评价直肠癌病人术前淋巴管造影和射性核素淋巴显像临床价值。

The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.

研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅有极高射性成因铅特点。