查询词典 radioactive element

The technique is so sensitive that it can detect a single radioactive carbon atom hiding among a quadrillion ordinary ones.

这种技术是如此的灵敏以至于可以在百万的四次方个原子中找到某一个放射性碳原子。

It is a radiation hazard, because it can occur in two radioactive forms.

因为且有两种辐射形式而属於幅射危害物。

Nevertheless, major concerns have been raised about radiation hazard and safe disposal of radioactive waste.

虽然如此，放射线危险性及其废弃物是否安全处置常引起大眾关心。

Based upon monitoring results of radioactive materials in tunnel excavation construction in Qinling Tunnel the intensity of radioactivity and distribution regularities is summarized, meanwhile, preliminary assessment and research are conducted for radiation hazard and protection.

结合西康线秦岭特长隧道Ⅱ线平导开挖过程中对隧道放射性物质监测结果，针对隧道内放射性强度、分布规律进行了归纳、总结，并就其辐射危害及防护进行了初步评价和研究。

The point of the experiment is that radioactive decay is a quantum process.

这个实验的关键点是放射性衰变是一个量子过程。

The point of the experiment is that radioactive decay is a quantum proces s.

这项实验的关键因素在于放射性衰变是一个量子过程。

The half-life is the time taken for half of the atoms of a radioactive substance to decay.

的半衰期是花费的时间为半原子的放射性物质腐烂。

Radioactive decay of radium-226, found in a wide variety of rocks and soil.

这种氡可以在很多种类的石头和土壤中找到。

Radon is a gas that comes from the radioactive decay of radium in rocks.

氡是来自岩石中镭辐射衰变而产生的一种气体。

Its stable isotope s are all end products of radioactive decay of uranium and other heavy elements.

其稳定的同位素为铀和其它重金属放射衰变后的最终产物。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。