“blowout preventer”的概念、定义、翻译、参考文献-科学参考

单词	blowout preventer
释义	blowout preventer [`blō´au̇t pri´ven·tǝr] ^{PETROLEUM ENGINEERING} Any one of several types of valves used on the wellhead to prevent the loss of pressure either in the annular space between drill pipe and casing or in the open hole during drilling completion operations.
随便看	base flashing base flow base for the neighborhood system base fracture base fuse base-height ratio base initiation base insulator base language base level base-leveled plain base-leveling epoch base line base-line break base-line check base-line delay bromacetone bromacil bromate bromatium bromcresol green bromcresol purple bromegrass bromelain Bromeliaceae

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