“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	object-oriented language object-oriented programming object plane object program object program library object relationship object routine object space object tape object time oblanceolate oblate ellipsoid oblateness oblate spheroid oblate spheroidal coordinate system obligate oblique oblique angle oblique ascension oblique astigmatism oblique chart oblique circular cone oblique coordinates oblique cylindrical orthomorphic projection oblique equator

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