The device comprises a workpiece to be plated, a workpiece clamping sealing device, a plating pen special for inner bore brush plating, and a plating pen rotary actuator.

该装置包括待镀工件、工件装夹密封装置、内孔刷镀专用镀笔、镀笔转动装置。

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Variable bore ram-type blowout preventer, as an improved blowout preventer, is capable of sealing around drill pipes with a range of sizes and has advantages such as low cost and convenience.

可变径闸板防喷器作为新型的闸板防喷器，能够密封一定范围内多种规格的钻具，具有成本低、使用方便等特点。

youdao

Variable bore ram-type blowout preventer, the improved type, is capable of sealing drill tools whose sizes are within a certain range, and has advantages of low cost and convenience.

可变径闸板防喷器作为新型的闸板防喷器，能够密封一定范围内多种规格的钻具，具有成本低，使用方便的优点。

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Then there is Halliburton, which was contracted to cement the production liner in the well casing, effectively sealing off the reservoir from the well bore.

FORBES

Halliburton ( HAL - news - people ), which was contracted to cement the production liner in the well casing, effectively sealing off the reservoir from the well bore.

FORBES: The Gulf Oil Leak