program controlled telephone switching
| system
| program controlled telephone switching | |
| tech. | 程控电话交换机 |
| system | |
| gen. | 体 |
| IMF. | 安排 |
| interntl.trade. | 系统分析 |
| med. | 派 |
| met. | 装置 |
| met. од. | 系 |
| tech. | 制度; 方法 |
| tech. од. | 体系; 系统 |
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| 程控电话交换机 | |||
| |||
| 程控电话交换机 | |||
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program controlled telephone switching : 4 phrases in 2 subjects |
| Rail transport | 1 |
| Technology | 3 |