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1·Radioactive water had seeped into underground reservoirs.

放射性水已渗入了地下蓄水池。《柯林斯英汉双解大词典》

2·The waste is safely locked away until it is no longer radioactive.

废料被安全地封存，直到其不再有辐射。《柯林斯英汉双解大词典》

3·They were exposed to radioactive fallout during nuclear weapons tests.

他们在核武器试验过程中暴露于放射性核辐射。《柯林斯英汉双解大词典》

4·Eastern Europe is rapidly becoming a dumping ground for radioactive residues.

东欧正在迅速变成一个放射性残渣的倾倒场。《柯林斯英汉双解大词典》

5·The early Earth contained abundant radioactive materials.

早期地球含有丰富的放射性物质。

6·Victims may be exposed to poisonous or radioactive minerals.

受害者可能接触到了有毒或放射性矿物。

7·The sunflowers kept growing; in the process, they absorbed radioactive elements.

向日葵继续生长；在这个过程中，他们吸收了放射性元素。

8·The radiation radius of the radioactive radium radiator in the stadium is variable.

放射性的镭散热器在体育场的辐射半径是可变的。

9·Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.

氦是钍和铀元素数千年放射性衰变的副产品。

10·I personally arranged for the demonstration against radioactive waste dumping in the Atlantic Ocean.

我亲自组织了反对在大西洋倾倒放射性废料的示威活动。

放射性的

1·They were exposed to radioactive fallout during nuclear weapons tests.

他们在核武器试验过程中暴露于放射性核辐射。《柯林斯英汉双解大词典》

2·Eastern Europe is rapidly becoming a dumping ground for radioactive residues.

东欧正在迅速变成一个放射性残渣的倾倒场。《柯林斯英汉双解大词典》

3·The early Earth contained abundant radioactive materials.

早期地球含有丰富的放射性物质。

4·Victims may be exposed to poisonous or radioactive minerals.

受害者可能接触到了有毒或放射性矿物。

5·The sunflowers kept growing; in the process, they absorbed radioactive elements.

向日葵继续生长；在这个过程中，他们吸收了放射性元素。

放射

1·The water contains two of the least dangerous radioactive materials now in the news - radioactive nitrogen and tritium.

冷却水含有新闻报道的两种危险程度最低的放射性物质——放射氮和放射氚。

2·Although such a cloud would pose virtually no threat while in the upper atmosphere, the fallout at the ground of radioactive particles from it should be a concern for any monitoring authority.

虽然这种云在高层大气中几乎不构成任何威胁，但是它在地面散发出的放射粒子的余波应该是任何监管机构所关注的。

3·In Oslo, callers were on the phone to the State Institute for Radiation Hygiene afternews reports told of an invisible radioactive cloud over the most denselypopulated part of Norway.

在奥斯陆（译注：挪威首都），新闻中播报了放射云正在挪威人口最稠密地区上空的消息以后，挪威辐射卫生研究所的电话被打爆了。

4·The different radioactive materials being reported at the nuclear accidents in Japan range from relatively benign to extremely worrisome.

日本核事故中报道的不同放射物质从相对良性的到让人极其担忧的都有。

5·The solid fuel pellet (a ceramic oxide matrix) is the first barrier that retains many of the radioactive fission products produced by the fission process.

固体的燃料弹（陶式氧化物母体）是第一道防护，隔开裂变过程中产生的裂变放射。

有辐射的

1·The waste is safely locked away until it is no longer radioactive.

废料被安全地封存，直到其不再有辐射。《柯林斯英汉双解大词典》

(1)radioactive waste放射性废弃物

(1)radioactive isotope放射性同位素

(1)radioactive material放射性物质；放射性材料

(1)radioactive source[核子学]放射源

(1)radioactive contamination放射性污染

(1)radioactive decay[物]放射性衰变