The use of DC electricity is another source of static electric fields, e.g. rail systems using DC, and televisions and computer screens with cathode ray tubes.

使用直流电是产生静电磁场的另一个原因，例如铁路系统使用直流电，电视和计算机屏幕带有阴极放射管。

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The invention discloses a kind of light source module, which includes cathode ray tubes, heat dispersing cavity, photics film, light filtering layer and cooling fluid.

本发明提出一种光源模块，其包括阴极射线管、散热腔体、光学膜片、 遮光层以及冷却液。

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A big problem was that both TCL and Thomson focused on clunky old models made using cathode-ray tubes.

一个大的问题是TCL和汤姆逊二者都是擅长制造使用CRT(阴极射线管)的笨重的老机型。

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Cathode ray tubes (CRTs) were an important component of TV and computer screens, accounting for 50% to 70% of their price.

BBC: Cathode ray tube in old TV

Under Chief Executive Steve Jobs, Apple has mastered the art of turning microprocessors and cathode ray tubes into objects of mass desire.

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The last century has seen only a few major display innovations, among them the move from black-and-white monitors to color and the introduction of flat, liquid crystal displays to replace cathode ray tubes.

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