program -controlled telephone
| switchboard
| program controlled telephone | |
| tech. | 程控电话 |
| switchboard | |
| geophys. | 开关板 |
| hydroel.st. | 配电盘 |
| met. | 转换器; 换向器; 交换台 |
| nucl.pow. | 配电盘 |
| oil | 开关盘 |
| space | 配电盘; 交换机 |
| telecom. | 交换机 |
| |||
| 程控电话 | |||
| |||
| 程控电话 | |||
|
program -controlled telephone : 7 phrases in 3 subjects |
| Communications | 1 |
| Rail transport | 1 |
| Technology | 5 |