The double gear cable measuring instrument is a special equipment which is essential for logging system.

双轮电缆测量仪是油田测井系统不可缺少的专用设备。

youdao

The double gear cable measuring instrument is a special equipment which is essential for logging system.

双轮电缆测量仪是油田测井系统不可缺少的专用设备。

youdao