Element 43's radioactivity makes it easy to isolate and measure.
43号元素的放射性使其易于分离和测量。
Born Maria Sklodowska in Poland in 1867, she is famous for her work on radioactivity, and was twice a winner of the Nobel Prize.
她于1867年出生在波兰，原名玛丽亚·斯克洛多夫斯卡，以放射性研究而闻名，曾两次获得诺贝尔奖。
Earth's internal heat, fueled by radioactivity, provides the energy for plate tectonics and continental drift, mountain building, and earthquakes.
地球内部因放射而产生的热量为板块运动、大陆漂移、造山运动和地震提供了能量。
This work prepared the way for the discovery of the neutron by Sir James Chadwick and, above all, for the discovery in 1934 by Irène and Frédéric Joliot-Curie of artificial radioactivity.
这项工作为詹姆斯·查德威克爵士发现中子铺平了道路，尤其是为伊莲娜和弗雷德里克·约里奥特·居里在1934年发现人工放射性奠定了基础。
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.
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。
Frederic became one of her assistants and Irene taught him the techniques required to work with radioactivity.
弗雷德里克成了她的助手之一，艾琳教他放射性工作中需要掌握的技能。
How is radioactivity measured?
如何测量放射性？
In fact, she coined the term, "radioactivity."
“放射性”的这个名称，其实就是她所创造的。
What is the danger level for humans and radioactivity?
对人类的危险程度和放射性是什么？
Are there acceptable levels for radioactivity in food?
有无可接受的食品放射活性方面的规定？
Plants in the area are now being tested for radioactivity.
当地的工厂正在进行放射性测试。
Are there rules for radioactivity in foods for international trade?
在国际贸易方面，有无食品中放射性物质方面的规定？
As a precaution scientists are monitoring radioactivity in the air.
作为一项预防措施，科学家正在监测空气中放射性系数。
As a precaution, scientists are monitoring radioactivity in the air.
作为一项预防措施，科学家正在监测空气中放射性系数。
The presence of radioactivity in some vegetables and milk has been confirmed.
已经确认在一些蔬菜和牛奶中发现放射性物质。
Food with radioactivity levels below these GLs is safe for people to eat.
人们食用低于该指导值的食品是安全的。
For example, a reader may also capture the temperature or radioactivity of an item.
例如，读取器也可以捕捉物品的温度或放射能。
They're trace levels but of course with radioactivity we can measure very low amounts.
这些微量放射性物质达到了检出水平，我们当然能够检出极低含量的放射性。
What are the international implications of the recent reports of radioactivity in food in Japan?
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？
Japan has regulations in place relating to provisional regulatory limits of radioactivity in food.
日本具有与食品中放射性临时管制限量有关的规定。
If the fuel is exposed to air, it could degrade further and emit dangerous levels of radioactivity.
如果核燃料扩散到空气中，它能不断分解和扩散，导致空气放射性强度大大增强。
Some of that radioactivity could carry in the atmosphere to the west coast of the United States.
某些核辐射可能通过空气传播到美国西海岸。
In other words, cool the core down, prevent a release of radioactivity either directly or indirectly.
换句话说，将核心冷却下来，防止反应力直接或者，间接的释放。
If the containment systems fail, a catastrophic radioactivity release to the environment could occur.
如果控制系统出现故障从而导致辐射释放到环境中，一场灾难将可能发生。
The Curies and scientist Henri Becquerel won a Nobel Prize for Physics in 1903 for discovering radioactivity.
居里夫妇和科学家亨利·贝克勒尔因发现了放射能而获得了1903年的诺贝尔物理学奖。
This is because the radioactivity emanating from polonium-210 is in the form of highly energetic alpha particles.
这是因为钋—210的放射性是以高能阿尔法粒子的形式存在的。
This is because the radioactivity emanating from polonium-210 is in the form of highly energetic alpha particles.
这是因为钋—210的放射性是以高能阿尔法粒子的形式存在的。
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