早期地球含有丰富的放射性物质。
居里夫人现在的名气到达顶峰，从1922年开始，她是医学学会的成员，研究放射性物质的化学性质及其医学应用。
Marie Curie, now at the highest point of her fame and, from 1922, a member of the Academy of Medicine, researched the chemistry of radioactive substances and their medical applications.
基于这项研究的结果，玛丽·居里获得了理学博士学位，1903年，玛丽和皮埃尔与贝克勒尔共同获得了诺贝尔物理学奖，以表彰他们发现了放射性物质。
Based on the results of this research, Marie Curie received her Doctorate of Science, and in 1903 Marie and Pierre shared with Becquerel the Nobel Prize for Physics for the discovery of radioactivity.
放射性物质由很多不稳定原子构成。
Radioactive materials are composed of atoms that are unstable.
有放射性物质落下时不要进行采收。
辐照会残留一些不明的放射性物质在食物里面。
Irradiation leaves no traces of radioactive material in food.
确切影响将取决于放射性物质的性质和摄入量。
The exact effect will depend on the nature and the amount of radioactive material that have been ingested.
其中所存放的高危放射性物质比反应炉里的还多。
They contain more dangerous radioactive products than do the reactor vessels.
没有放射性物质泄漏也没有化学物质泄漏。
There have been no radioactive leaks and there have been no chemical leaks.
但是他说，并没有辐射或放射性物质从核设施中泄漏。
But he said there had been no leakage of radiation or radioactive material from nuclear facilities.
如果燃料棒损坏，放射性物质会进到剩余的冷却剂中。
If the fuel rods became damaged they would release radioactive material into the remaining coolant.
在国际贸易方面，有无食品中放射性物质方面的规定？
Are there rules for radioactivity in foods for international trade?
枝野幸男指出，所有核电厂并未发生放射性物质的泄漏。
Edano has said there have been no leaks of radioactive material at any plants.
受损核电站在释出放射性物质时往往会遵循同一种模式。
Radioactive materials tend to be released from a damaged nuclear plant in a certain pattern.
留在核心内的放射性物质将在很长一段时间内持续放热。
What's left over in the core, the radioactive material, will continue to give off heat for a long time.
已经确认在一些蔬菜和牛奶中发现放射性物质。
The presence of radioactivity in some vegetables and milk has been confirmed.
几英里外，随着放射性物质的消散，辐射水平会低很多。
A few miles away, the doses would be much lower as the radiation dissipates.
放射性物质停留甲状腺，大面积破坏细胞，最后引发癌症。
The radioactive material lodges in the thyroid gland where it wreaks havoc on cells, eventually causing cancer.
不幸的是，放射性物质无疑正从福岛核电站泄漏到大气中。
Unfortunately, there is no question that radioactive substances are leaking into the atmosphere from the Fukushima nuclear power plant.
某些物种，例如海带，非常容易堆积放射性物质。
Some species, such as brown seaweed are extremely efficient at bioaccumulation.
如果缺水，它们将继续升温，并可能释放出大量放射性物质。
Without water, they will continue to heat up and possibly release a large amount of radiation.
枝野幸男说，有“微量”的放射性物质随着蒸汽被排放至大气中。
“Tiny amounts” of radioactive material had escaped into the air during the ventilations, Mr Edano said.
近来有关日本食品中含有放射性物质的报告会造成哪些国际影响？
What are the international implications of the recent reports of radioactivity in food in Japan?
但是由于反应堆的放射性物质泄漏，飞机必须保持在非常高的位置。
But they had to fly high because of radioactive leaks from the reactors.
许多城市的监测站受命对空气和海水中的放射性物质进行全天监测。
Monitoring stations in many cities were ordered to conduct around-the-clock surveillance of radioactive substances in the air and sea water.
对于职业的处理放射性物质的工人，接触辐射的极限是50毫西韦特。
The limit for occupational radiation exposure among workers who deal with radioactive material is 50 millisieverts.
由于她在放射性物质方面的研究，玛丽于1903年获得了博士学位。
In 1903 Marie received her doctor's degree for her study on radioactive matter.
由于她在放射性物质方面的研究，玛丽于1903年获得了博士学位。
In 1903 Marie received her doctor's degree for her study on radioactive matter.
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