For Comparison, the consistent mass matrix of circular-beam is also derived.

文中还导出单元的一致质量矩阵，可资比较。

youdao

That means a magnet has to nudge the protons to enter the circular beam pipe on the tangent.

这意味着必须设置一个磁铁，以便调整质子束方向以保证沿着切向方向导入圆形粒子束管道。

youdao

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径，可以让镍晶体发射，单束X光来，继而得到环状图案，如果电子束，是以粒子束形式出现的。

youdao

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。

麻省理工公开课 - 固态化学导论课程节选