signaling relay
| function
| signaling relay | |
| el. | 信号继电器 |
| function | |
| gen. | 运行; 工作 |
| hydroel.st. | 作用 |
| interntl.trade. | 效用; 职能 |
| light. | 功能，用途 |
| math. | 运算 |
| met. | 功用; 用途 |
| |||
| 信号继电器 | |||
|
signaling relay : 3 phrases in 2 subjects |
| Electronics | 2 |
| Telecommunications | 1 |