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| 放放性测井 | |||
| 放射性测井 | |||
| 放射性测井在钻孔中测定岩土的天然放射性或测量人工放射性同位素与岩层中物质的相互作用发生的一系列效应〈散射、吸收等〉，以研究岩层结构与性质的一种测井方法 | |||
| 放射性测井法 (method) | |||
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| 放射性测井 | |||
| radioactivity logging: 4 phrases in 3 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Technology | 1 |
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