英语词汇“tension packer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tension packer
释义	tension packer tension packer [′ten·chən ′pak·ər] (petroleum engineering) A device to pressure-seal the annular space between an oil-well casing and tubing, held in place by tension against an upward push; a type of production packer.
随便看	seigniorial seigniories seigniorize seignior or seigneur seigniors seigniorship seigniory seignobos, charles seignorage seignorages seignoral seignorial seignorial system seignory seihan river seihpc seii seiichi katsumata seiichiro tarui seiii seii taishogun seii taisyogun seiji kaya seijin-no-hi seiji ozawa

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