They are different from that of conventional rotary drilling equipment.
这些设备与常用的钻进法设备不同。
There are several other kinds of rotary drilling equipment using the rotary principle in the construction of vertical shafts.
在建设竖井中，有一些其它种类的利用旋转原理的钻进法设备。
MAIT is the first company to research and manufacture the rotary drilling RIGS and related foundation equipment in the world, Mr.
是世界上最早开始进行旋挖钻机以及相关基础施工设备研发的公司。
The utility model relates to a square bushing for measuring the torsion of a rotary table in the process of drilling Wells, which belongs to an appliance of well drilling equipment.
本实用新型是一种在钻井过程中测量转盘扭矩的方补芯，属于钻井设备的器具。
The utility model relates to a square bushing for measuring the torsion of a rotary table in the process of drilling Wells, which belongs to an appliance of well drilling equipment.
本实用新型是一种在钻井过程中测量转盘扭矩的方补芯，属于钻井设备的器具。
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