我已经告诉泥浆工程师了。
You had better improve the equipment with the mud engineer.
你们最好跟泥浆工程师一起改造这台设备。
That engineer carrying out the experiment is a mud engineer.
正在做这项实验的那位工程师是泥浆工程师。
After the well finish, only keep one mud engineer at the rig.
完钻后，只留一个泥浆工程师在井上。
After the well finish, only keep one mud engineer at the rig.
完钻后，只留一个泥浆工程师在井上。
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