Do you think it necessary to have any further improvements in the control system of blowout preventer?
你以为有必要对防喷器控制系统再做进一步改进吗？
The annular BOP is the important assembly of the blowout preventer control system.
环形防喷器是井口防喷控制装置的重要组成部件之一。
The hydraulic filter of blowout preventer control system is improved.
并对防喷器控制系统液压过滤装置进行了改进。
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