advance development
| engineering order
| advance development | |
| tech. | 超前掘进 |
| engineering order | |
| auto. | 工程命令; 工程 指令 |
| avia. | 工程指令 |
| busin. | 工程单; 工程指示 |
| econ. | 工程指令 |
| oil | 工程订单 |
| |||
| 超前掘进 | |||
|
advance development : 7 phrases in 4 subjects |
| Aviation | 4 |
| China | 1 |
| Earth sciences | 1 |
| Finances | 1 |