connection-mode data link | service
| service abbr. | |
| econ. | 署; 司; 服 务 |
| hydroel.st. | 供给 |
| interntl.trade. | 劳务 |
| met. | 维护; 设施 |
| oil | 修理 |
|
connection-mode data link : 1 phrase in 1 subject |
| Electronics | 1 |