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| неподвижный блок | |||
| фиксированный шкив; неподвижный шкив; направляющий блок | |||
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定滑轮 : 16 phrases in 5 subjects |
| Drilling | 1 |
| General | 4 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Technology | 9 |
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