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。
Type of radioactive disintegration (see radioactivity) in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
放射性蜕变的一类,某些不稳定原子核自发射出一个α粒子以耗散过剩能量。
Half-lives are characteristic properties of the various unstable atomic nuclei and the particular way in which they decay. Alpha decay and Beta decay are generally slower processes than gamma decay.
半衰期是各种不稳定原子核的特性,是它们衰变的特殊方式。α衰变和β衰变一般比γ衰变为慢。
Careful! Caregul! That reactor is unstable!
注意！注意！那个原子反应堆不稳定！
There is a stable ground state of the atom.
原子有一个稳定的基态。
ion-ion streaming instability
离子－离子流不稳定性
The shortage of neutrons in U-235 seems to give its atoms a strange sort of instability.
在U-235中缺少中子似乎给予U-235原子一种奇异的不稳定性。
Dynamical stability of the dark state in an atom-heteronuclear-trimer conversion system
原子-异核-三聚物分子转化系统暗态的动力学不稳定性
a precarious footing on the ladder.
梯子上不稳定的立足点。
microinstability of plasma
等离子体微观不稳定性
Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and Beta decay until a stable nucleus is achieved.
放射性系:四组不稳定的重原子核,通过一系列α衰变和β衰变直至达到稳定的核为止。
The shaded boxes indicate stable nuclei.
有阴影的格子表示稳定的原子核。
The principle we have laid down for ourselves is that we must be both determined and on the alert.
我们确定的原则是：胆子要大，步子要稳。
Adiabaticity and Stability of the Ultracold Atom-molecule Dark State
超冷原子—分子暗态的绝热性和稳定性
Study on SWCNT Structure Instability as Induced by In-situ Transmission Electron Microscope Electron Beam Irradiation;
原位透射电镜电子束辐照诱导SWCNT结构不稳定性研究
Research on Reasons for Instability of Athletic Level of Chinese Women Basketball Teams and Measures Taken for Development;
对我国女子篮球运动水平不稳定原因与发展对策的研究
Small order of stable subgroup of point of limited and primitively permutation group;
小阶数点稳定子群的有限本原置换群
The nuclear force can maintain the stability of a nuclei so that it can also maintain the stability of the neutron stars.
这种短程力能使原子核保持稳定，当然也能使带电中子星保持稳定。