“bottom hold-down”的概念、定义、翻译、参考文献-科学参考

单词	bottom hold-down
释义	bottom hold-down [`bäd·ǝm `hōl dau̇n] ^{PETROLEUM ENGINEERING} A device located at the lower end of a bottom-hole pump that anchors it in a well.
随便看	meionite meiosis meiospore meiotic drive Meissner effect Meissner-Ochsenfeld effect Meissner oscillator Meissner's corpuscle Meissner's plexus MEK mel melamine melamine resin Melamphaidae Melampsoraceae melancholia Melanconiaceae Melanconiales Melandryidae Melanesia melangeur melanic melaniline melanin melanoblast

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