Once correct flow rate setting has been established, slide memory stop clockwise towards open side of indicator plate until memory stopring hits indicator plate.
The landing is thread connected with stopring and tightened on and put into downhole with drill string. The landing sub is used as a sub above drill string before check valve is run in downhole.
就位接头与止动环用螺纹联结并上紧扣和钻柱连接下入井内,在未投入止回阀时作为钻柱上的一个接头。
3
Her diamond ring dropped by accident in the trashcan and only realized after a dump truck had made a stop at their house.