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| relay (A switch activated by an electrical signal. A relay allows another signal to be controlled without the need for human action to route the other signal to the control point, and it also allows a relatively low-power signal to control a high-power signal) | |||
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Relay : 13 短语, 5 学科 |
| 一般 | 2 |
| 保险 | 1 |
| 缩写 | 1 |
| 计算 | 3 |
| 通讯 | 6 |