自然伽马指数通常由自然伽马或其它测井曲线计算得到。

The gamma ray index is usually computed from a well log such as a gamma ray log.

youdao

自然伽马指数通常由自然伽马或其它测井曲线计算得到。

The gamma ray index is usually computed from a well log such as a gamma ray log.

youdao