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| 声发射测压计; 声发射测井计; 回声孔压计 | |||
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| 声发射测压计; 音波測壓計; 聲發射測壓計 | |||
| 声发射测井计; 回声孔压计 | |||
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acoustical piezometer : 2 phrases in 1 subject |
| Engineering geology | 2 |
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