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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Every processor in the computer has these tubes directly attached to them, so no processor in the system overheats.

直接附着于计算机的每个处理器，使之不会过热。

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The first general-purpose computer, the nearly 30-ton ENIAC (1947), contains 18,000 vacuum tubes, 70,000 resistors and 10,000 capacitors.

世界上第一台电脑——近30吨埃涅阿克（1947年），使用了18000个电子管，另加1500个继电器以及其它器件，其总体积约90立方米，重达30吨，占地170平方米，需要用一间30多米长的大房间才能存放，是个地地道道的庞然大物。

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The South Korean firm is among a number of manufacturers that have been accused of fixing prices of TV and computer monitor cathode-ray tubes.

BBC: LG Electronics to appeal EU price-fixing fine

To analogize, you can have parts as diverse as rubber tires, computer circuits, hollow metal tubes, plastic and metal panels, leather, and a variety of fluids and end up with a car.

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By feeding video input into a computer, Philips makes the LED tubes function as a low-resolution video screen.

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