ground-proximity
| extraction system
| ground proximity | |
| avia. | 地面接近 |
| extraction system | |
| auto. | 抽 风装置 |
| avia. | 牵引系统 |
| chem. | 抽提系统 |
| el. | 引漏系统; 引出系统 |
| met. | 提取系统; 萃取系统 |
| |||
| 地面接近 | |||
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ground-proximity : 18 phrases in 3 subjects |
| Aviation | 16 |
| Electronics | 1 |
| Space | 1 |