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| propeller shaft survey | |||
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| axle-box lubrication check-up | |||
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轴 检 : 64 phrases in 11 subjects |
| Air defense | 1 |
| Automobiles | 3 |
| Electronics | 2 |
| Hydroelectric power stations | 3 |
| Nautical | 4 |
| Oil / petroleum | 4 |
| Rail transport | 8 |
| Shipbuilding | 22 |
| Technology | 15 |
| Telecommunications | 1 |
| Wind Energy | 1 |
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