“hanger plug”的概念、定义、翻译、参考文献-科学参考

单词	hanger plug
释义	hanger plug [`haŋ·ǝr ´plǝg] ^{PETROLEUM ENGINEERING} A pressure-tight sealing device placed in the casing below the blowout preventer.
随便看	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 oblique extinction

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