电工太阳能热管真空管集热器。
真空管或显影管都未破碎。
我认为这是一个真空管系统在没有阻力。
I think this was a vacuum tube system where there is no drag.
你认为你的电视机真空管正逐渐老化吗？
要制造更高性能的计算机就意味着你需要更多真空管。
To make a more powerful computer meant that you had to have more vacuum tubes.
阀门用于接通或切断真空管路中的气流。
It is used to put through cut off the air passage in vacuum pipeline.
阀门用于接通或者堵截真空管途中的气流。
It is used to put through or cut off the air passage in vacuum pipeline.
真空管的声音比任何其他种类的半导体都要优越。
The sound of valves is inherently superior to that of any kind of semi-conductor.
电子管或真空管。
而我们通常把这种使用真空管的计算机称为第一代计算机。
We usually use vacuum tubes such as the first generation of computer computer.
CC Q型气动超高真空插板阀用于接通或切断真空管路中的气流。
It is used to put through or cut off the air passage in vacuum pipeline.
CC Q型气动超高真空插板阀用于接通或切断真空管路中的气流。
It is used to put through or cut off the air passage in vacuum pipeline.
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