不稳定核 meaning in English

unstable nuclear
unstable nucleus

The heavier elements can be produced only by events with very short time - scales ( shorter than one second ) that enable the process to continue through unstable nuclei
较重的元素可以产生唯一的事件,在很短的时间尺度(小于1秒) ,使进程能够继续透过不稳定核
Since the unstable nuclei exist between actinides , including thorium and stable nuclei like lead and bismuth , explosive events such as supernovae are required to produce actinides
自不稳定核之间存在着锕系元素,包括钍和稳定核像灌了铅,铋,爆炸性事件,如超需出示锕