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| 美国石油学会单位名称 | |||
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| 美国石油学会单位自然伽马测井及中子测井的计数率单位 | |||
| API 单位 | |||
| American Petroleum Institute unit: 4 phrases in 2 subjects |
| Drilling | 1 |
| Geophysics | 3 |
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