“blind ram”的概念、定义、翻译、参考文献-科学参考

单词	blind ram
释义	blind ram [`blīnd `ram] ^{PETROLEUM ENGINEERING} A ram on a blowout preventer that acts as the closing element on an open hole; its ends do not fit around the drill pipe, but seal each other and shut off the space below completely.
随便看	phono plug phonoreception phonotelemeter phony disease phony mine phorate phoresy Phoridae phorogenesis Phoronida phosgene phosgenite phosphatase phosphate phosphate anion phosphate buffer phosphate coating phosphate desulfurization phosphate fertilizer phosphate glass phosphate recovery process phosphate rock phosphatic nodule phosphatide phosphating

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