closed circuit signalling
closed circuit signalling是什么意思、closed circuit signalling怎么读
closed circuit signalling 基本解释
闭路发信
重点词汇
- circuitn. 电路, 环(行)道, 巡回 [计] 线路; 电路
- closeda. 关闭的, 限于少数人的 [计] 关闭指令
- signalling[计] 信号传输法
closed circuit signalling是什么意思、closed circuit signalling怎么读
闭路发信