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井下安全
| 检査员
| 井下安全 | |
| dril. | down-hole security |
| 检査 员 | |
| gen. | inspector |
| met. | inspector |
| 检査员 | |
| gen. | gauger |
| busin. | canvasser; searcher |
| interntl.trade. | censor; examiner; inspector |
| tech. | surveyor |
| |||
| down-hole security | |||
|
井下安全 : 16 phrases in 6 subjects |
| Drilling | 3 |
| General | 1 |
| Mechanics | 1 |
| Mining | 2 |
| Navigation | 3 |
| Oil / petroleum | 6 |
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