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free piston
| drive sampler
| free piston | |
| space | 自由活塞 |
| tech. | 气举活塞 |
| drive sampler | |
| desert. | 击入式取土器 |
| eng.geol. | 打入式取土器; 擊入式取土器 |
| oil | 打入式取样器 |
| |||
| 自由活塞 | |||
| 气举活塞 | |||
| |||
| 自由活塞 | |||
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free piston drive sampler : 37 phrases in 9 subjects |
| Automobiles | 3 |
| Compressors | 4 |
| Electric machinery | 1 |
| Engineering geology | 1 |
| Oil / petroleum | 4 |
| Refrigeration | 2 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 19 |
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