digital data switching
| service
| digital data switching | |
| comp., net. | 数字数据交换 |
| service | |
| econ. | 署; 司; 服 务 |
| hydroel.st. | 供给 |
| interntl.trade. | 劳务 |
| met. | 维护; 设施 |
| oil | 修理 |
| |||
| 数字数据交换 | |||
| 数字数据交换［转接］ | |||
|
digital data switching : 3 phrases in 1 subject |
| Electronics | 3 |