查询词典 radioactive element

"Radioactivity: Property exhibited by certain types of matter of emit ting radiation spontaneously. The phenomenon was first reported in 1896 by Henri Becquerel for a uranium salt, and it was soon found that all uranium compounds are radioactive due to the uranium's radioactivity."

放射性：某些类的物质自发发射辐射的特性。1896年贝克勒耳第一个报告在铀盐中发现了这一现象，不久发现由于铀有放射性，所以所有的铀化合物都是放射性的。

Radiation of beta particles during radioactive decay.

在放射性衰变的过程中放出β粒子的辐射。

The radioactive transformation giving rise to these electrons was known as beta decay.

产生这种电子的放射性变化，称为β衰变。

A better idea springs from the weak force , which governs certain nuclear processes, including radioactive beta decay. In 1964, physicists found that the weak force is not quite symmetrical in its dealings with matter and antimatter, resulting in something known as CP violation .

比较好的意见是后来突然提出来的称为"弱力"的理论，这种"弱力"控制了某些核过程，其中也包括了放射性的β衰变。1964年，物理学家发现弱力在处理物质和反物质是不完全对称的，此种结果称为宇称不守恒。

"Beta particle:a high-speed electron or positron, especially one emitted in radioactive decay ."

粒子：一种高速电子或质子，主要在放射衰变中释放出。

"Beta particle:a high-speed electron or positron, especially one emit ted in radioactive decay."

粒子：一种高速电子或质子，主要在放射衰变中释放出。

Any of three processes of radioactive disintegration in which a beta particle is spontaneously emitted by an unstable atomic nucleus in order to dissipate excess energy.

某些不稳定原子核为耗散其过剩能量而自发发射一个β粒子的三种放射性衰变过程的统称。

Any of three processes of radioactive disintegration in which a beta particle is spontaneously emit ted by an unstable atomic nucleus in order to dissipate excess energy.

某些不稳定原子核为耗散其过剩能量而自发发射一个β粒子的三种放射性衰变过程的统称。

Article 6 Every unit and individual shall have the right to report to the authorities and bring a charge against any act that causes radioactive pollution.

第六条 任何单位和个人有权对造成放射性污染的行为提出检举和控告。

Radiotherapy is usually provided by means of sealed containers of radioactive caesium or radium that are placed in the vagina and in the cavity of the womb.

放射治疗通常是所提供的手段，密封容器的放射性铯或镭被放置在阴道，并在腔的子宫。

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。