通断

通断 [tōng duàn]

1. ■ break-make; on-off

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常用词组

1. ■ 通断按键 tapping key;

2. ■ 通断比 break-make ratio;

3. ■ 通断开关 cut-in out switch; on and off switch; on-off switch; switch on and off;

4. ■ 通断操作 make-break operation;

5. ■ 通断控制 on-off control;

6. ■ 通断调制 on-off modulation;

7. ■ 通断装置 on-off system