“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	well completion well conditioning well core well-deck vessel well drill well-formed formula wellhead wellhole well injectivity well logging well-ordered set well-ordering principle well performance wellpoint wellpoint system well-posed problem well-regulated system well shooting well-sorted well spacing well stimulation well-type manometer welt Welwitschiales Wenlockian

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