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。
Uranium or thorium ores and concentrates.
铀或钍矿砂及其精矿。
Thorium is separated by extraction chromatography.
用萃取色层法分离钍。
This is clearly confirmed by the detection of thorium.
这显然证实了检测钍。
Thorium-based molten salt nuclear reactors for the future!
为了未来的钍基熔盐核反应堆。
Radium, uranium, and thorium are radioactive metallic elements.
镭、铀和钍都属于放射性金属元素。
China's dash for thorium power could alter the energy landscape.
中国大力研发钍能，将改变世界能源景观。
Followed by the slow decomposition of uranium to another element thorium.
铀元素随后缓慢分解为另一种元素钍。
The calculation from the neutrino work yields 20 terawatts for uranium and thorium.
从中微子工作计算出铀和钍约产出20太瓦。
So, you've got polonium or thorium sitting inside this leaded box with one opening.
把钋或者钍放在,开一个小口的含铅的盒子里面。
Compared to uranium, thorium is far more abundant as well as much more energy-dense.
与铀相比，钍的储藏量更为丰富，能量密度也更高。
Rare earth mines often also contain radioactive elements, such as uranium and thorium.
稀土矿山常常也含有放射性元素，比如铀和钍。
Using Pierre’s invention to make the measurements, Marie noted that thorium was radioactive.
他们用皮埃尔所发明的仪器来进行测量。玛丽注意到钍元素也是具有放射性的。
The use of thoria (thorium dioxide) as an agent was rapidly stopped as thorium causes liver cancer.
而使用氧化钍(二氧化钍)作为代理人迅速停止钍导致肝癌。
Potassium, phosphorus and thorium are other elements that lunar rocks have to offer a potential mining venture.
钾、磷、钍是月岩可向将来的采矿企业提供的其它元素。
The team's measurement of thorium revealed the overall abundance pattern of heavy elements for this object.
该队的测量发现钍的总体格局丰富的重元素，为这个目的。
A few elements, among them uranium and thorium, spontaneously disintegrate into lighter elements by chances.
少数元素，其中有铀和钍，通过它们核的变化自然蜕变成较轻的元素。
The crust granites have higher lead isotope ratios and are richer in uranium lead but poorer in thorium lead.
壳型花岗岩具较高的铅同位素比值和富铀铅贫钍铅的特点；
The reason is that the ash left over when coal is burned contains radioactive elements, notably uranium and thorium.
理由是煤燃烧过后省些的煤灰含有放射性元素，尤其是铀和钍。
There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine.
铀矿山坑道污水含有铀、镭、钍、钋等放射性核素，外排前必须加以处理。
Unlike most supernovae, this one spewed lots of elements far heavier than iron, including radioactive thorium and uranium.
这颗晕星不同于大多数超新星，它吐出的许多元素比铁还重，其中包括放射性钍和铀。
They had been interested in thorium — a radioactive element that can fuel nuclear reactors but not be processed into weapons.
他们当时对一种放射性元素钍很感兴趣，这种元素能驱动核反应堆，却不能制造生产成武器。
The fuel cycle model is one of the most important problem in the concept design of Thorium Advanced CANDU Reactor(TACR).
在钍基先进CANDU堆的概念设计中， 钍燃料的循环利用方式是一重要问题。
A simple, quick, and sensitive method to determine the radioactive nuclides of uranium and thorium in talc is described.
介绍了一种测定滑石粉中放射性核素铀钍的简便、快速且灵敏的方法。
Sorensen estimates that between 5, 000-6, 000 tonnes of thorium could produce as much energy as the world currently consumes each year.
索伦森估计，5000- 6000吨的钍就可以产生相当于目前世界上每年能耗量的能源。
Calculations suggest, for instance, that in the nucleus of the isotope thorium-229 is a transition that should emit ultraviolet rays.
举例来说，计算表明，钍- 229的原子核内存在着能发出紫外线的转变过程。
In this case the geologists drilled into the stalagmites and estimated their age from the way that uranium decays into an isotope of thorium.
地质学家在石笋上钻孔，使用铀衰变成钍的同位素的方法确定它们的年龄。
The paper presents a design of passive heat-switch between pressure tube and calandria tube of Thorium-based Advanced Nuclear Energy System.
提出了一种用于钍基先进核能系统压力管与排管之间的非能动热开关设计方案。
The paper presents a design of passive heat-switch between pressure tube and calandria tube of Thorium-based Advanced Nuclear Energy System.
提出了一种用于钍基先进核能系统压力管与排管之间的非能动热开关设计方案。
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