The results show that the effect of pairing is expressed in terms of one quasi particle excitation for the odd nuclidic mass nucleus.

研究结果表明，对力对奇质量数核的作用可以用准粒子激发表示。

youdao

Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom.

进一步的，核被认为是，原子主要质量所在的地方，和整个原子线性尺度相比，核具有很好的线性尺度。

youdao

That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.

这就解释了为什么我们不担心，原子核运动起来，因为原子核和电子的质量比约为2000 ？

youdao

Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom."

进一步的，核被认为是,原子主要质量所在的地方，和整个原子线性尺度相比,核具有很好的线性尺度“

麻省理工公开课 - 固态化学导论课程节选

That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.

这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000：

麻省理工公开课 - 固态化学导论课程节选

If we think of the size of a typical atom, we would say that would be about 10 to the negative 10 meters. So, we can see the diameter of a nucleus is absolutely smaller really concentrating that mass into a very small space.

一个普通细胞的大小，抱歉，我和细胞核搞混了0,如果我们考虑，一个普通原子的大小,这大概是10的负十次方米,所以原子核的直径确实非常小,真的是把质量。

麻省理工公开课 - 化学原理课程节选