“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	sweetgum sweet oil sweet orange oil sweet potato sweet roast sweet spirits of niter swell swell-and-swale topography swell diameter swell direction swelled ground swell forecast swelling clay swep sweptback wing swept-frequency reflectometer swept wing swim bladder swimmeret swimmer's conjunctivitis swimmer's itch swimming bird swimming-pool conjunctivitis swimming-pool reactor swine

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