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History Search
电子管
大门
懒骨头
利用
分红
绑架
有始无终
从而
选用
商务
替换
无害
暗礁
woeful
简体字
便宜
行行出状元
通行
毫无二致
客串
细软
自动
捏造
演习
撇
廉价
流传
完成
冻结
娇惯
背井离乡
简要
减慢
指战员
迎战
通行证
电话号码
定量
协商
滑行
[Clear Recent History...]
Từ điển Trung Việt - Giản thể (Chinese Vietnamese Dictionary Simplified)
电子管
[diànzǐguǎn]
bóng điện tử; đèn điện tử。无线电技术上的重要器件。在玻璃或金属的容器内装特制的电极,通过阴极放射的电子与其他电极相作用进行各种工作,最重要的作用是整流、检波、放大和振荡。简单的电子管有两个极,叫二极管。按电极数可分为三极管、四极管、五极管等。一般常用的都是高度真空的,所以也叫真空管。
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