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| 交叉射击 | |||
| 交叉爆破地震勘探 | |||
| 交叉爆破 (地震勘探) | |||
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| 交叉射击 | |||
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cross -shooting : 4 phrases in 3 subjects |
| Engineering geology | 2 |
| Oil / petroleum | 1 |
| Technology | 1 |
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