To solve the problem in the well caused by the stopping of drilling mud at the time of connection, the continuous circulation drilling technology was developed initially in U.
为了解决常规钻井在上扣、卸扣时因停止泥浆循环带来的一系列井下问题，美国最早开发了连续循环钻井技术。
The invention discloses a braking device, aiming at solving the problem of long stopping time of a grinder.
本发明公开了一种制动装置，旨在解决粉碎机停车时间长的问题。
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