放射性衰变：物理学中的一种过程，即不稳定核发射亚原子粒子和/或电离辐射，分解成一个或多个较小的核的过程。
radioactive decay //
名词 disintegration of a nucleus that occurs spontaneously or as a result of electron capture. One or more different nuclei are formed and usually particles and gamma rays are emitted 放射性衰变 (Sometimes shortened to decayAlso called disintegration)
the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
同义词： decay / disintegration
放射性衰变
放射性衰变
辐射衰变
放射性的衰变
放射衰变
放射性蜕变
放射性衰变
放射性衰变
放射衰变
放射性衰变
又称放射性衰变(radioactive decay),曾称蜕变。是指自然界中某些核素的原子核能自发地发生变化,从一种核素的原子核变成另一种核素的原子核,并伴随放出αβγ射线的现...
... radioactive content 辐射含量；放射性含量 radioactive decay 放射衰变 radioactive dust 辐射尘埃；放射性尘埃 ...
...，它们可以被一层几厘米厚的空气几乎完全吸收： α衰变 。每种放射性核素都有其特定的半衰期。其实质是一个下夸克通过释放一个W-玻色子转变成一个上夸克，并且转变成一个质量数减少4，同时释放γ粒子，这个过程称为衰变(Radioactive decay)，一个电子和一个反电子中微子。 β-衰变中。
... the alchemists' dream（炼金术士的梦想） radioactive decay（放射性的衰变） radioactive clocks（放射性的时钟） ...
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。
These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain.
这些矿物可以用放射性衰变技术测定年代，因为它们所含的放射性微量元素非常少。
The point of the experiment is that radioactive decay is a quantum process.
这项实验的关键因素在于放射性衰变是一个量子过程。
Alpha particles are these helium nuclei, and they are the result of radioactive decay.
阿尔法粒子是氦核，它们是放射性衰变的产物。
固态化学导论课程节选 : 麻省理工公开课
If there is a gigantic mountain with 5, 000 km height, 50% of this mountain would not respond to radioactive decay.
The heat that keeps the core of the earth molten is primarily radioactive decay -it is what makes rock into liquid lava.
In the meantime, it remains to be seen how these findings will affect the use of radioactive decay in technological applications.
FORBES: Radioactive Decay Rates May Not Be Constant After All