单词：vacuum tube
[化] 真空管
vacuum tube的用法和样例：
例句
- Not any air gets into the vacuum tube.没有空气能进入真空管。
- No vacuum or picture tubes were broken.真空管或显影管都未破碎。
- In a radio tube there is a source of electrons.在电子管中，有一个电子发射源。
- A tube or a transistor can amplify an incoming signal.电子管和晶体管能放大输入的信号。
- lamp灯
- electron tube真空管
- tube管子
- thermionic tube[物]热离子管...
- thermionic vacuum tube热离子真空管...
- thermionic valve[物]热离子管...
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