So rather than calling this an electron beam, this was called a cathode ray.

因此我们最好别叫它电子束，而是阴极射线。

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It is an electron beam. In the 1890s, the latter part of the 19th century a very fashionable word was "ray."

那是个电子束，在十九世纪九十年代，就是19世纪末，一个很时髦的词汇-“光线。”

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Instead, a single wavelength can be selected to produce the X-ray equivalent of a pure-colour beam of light.

事实上单独某一个波长的射线就可以产生好象一束单色光一样的纯净的伦琴射线。

youdao

It is an electron beam. In the 1890s, the latter part of the 19th century a very fashionable word was "ray."

那是个电子束，在十九世纪九十年代，就是19世纪末,一个很时髦的词汇-“光线“

麻省理工公开课 - 固态化学导论课程节选

So rather than calling this an electron beam, this was called a cathode ray.

因此我们最好别叫它电子束，而是阴极射线。

麻省理工公开课 - 固态化学导论课程节选

The specimen is then rotated on a mechanised platform as it is exposed to the X-ray beam, in order to build up a three-dimensional picture.

BBC: Hi-tech scans reveal brain of human 'ancestor'

X-ray beam, but have proved hard to manufacture in the past.

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