本程序使用彩色显示器帮助钻井船抛锚导航及钻机定位。

This program helps the drilling ship to cast anchors and locate the rig by the aid of color display.

youdao

本程序使用彩色显示器帮助钻井船抛锚导航及钻机定位。

This program helps the drilling ship to cast anchors and locate the rig by the aid of color display.

youdao