本世纪70年代以来，分析仪器已经是石油地质实验室中的重要工具。

Since 1970s, analytical instruments have been important tools in petroleum geology laboratories.

youdao

本世纪70年代以来，分析仪器已经是石油地质实验室中的重要工具。

Since 1970s, analytical instruments have been important tools in petroleum geology laboratories.

youdao