“hook-wall packer”的概念、定义、翻译、参考文献-科学参考

单词	hook-wall packer
释义	hook-wall packer [`hu̇k ´wȯl ´pak·ǝr] ^{PETROLEUM ENGINEERING} Fluid-proof seal between the outside of oil well tubing and the inside of the casing; hooks hold it in place.
随便看	coaxial relay coaxial speaker coaxial stub coaxial switch coaxial transistor coaxial transmission line coaxial wavemeter coaxing cob cobalamin cobalt cobalt-60 cobalt-beam therapy cobalt bloom cobalt blue cobalt bomb cobalt bromide cobalt chloride cobalt glance cobaltic fluoride cobaltite cobalt-molybdate desulfurization cobalt nitrate cobaltocalcite cobalt ocher

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