钍系

Their discovery marks the first abundance determination of the actinides element thorium in a star beyond the Milky Way, and follows the detection of thorium in more than ten stars within the Milky Way.

他们发现，标志着首丰测定的锕系元素钍星以外的银河系，跟检测钍十余恒星的银河系。

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。

The natural series are the thorium series, the uranium series, and the actinium series.

天然的放射性系是钍系、铀系和锕系。

Their discovery marks the first abundance determination of the actinide s element thorium in a star beyond the Milky Way, and follows the detection of thorium in more than ten stars within the Milky Way.

他们发现，标志着首丰测定的锕系元素钍星以外的银河系，跟检测钍十余恒星的银河系。你知道它的英文吗？

Thorium along with uranium (U belongs to the actinide group of chemical elements.

钍(16日)同铀(U所属的77锕系元素。

Since the unstable nuclei exist between actinide s, including thorium and stable nuclei like lead and bismuth, explosive events such as supernovae are required to produce actinide s.

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。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。