“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	HPBW H pile H plane H-plane bend H-plane T junction HPLC hr H-R diagram HREELS H-RNA H rod crossbar system crossbeam cross bearing cross-bedding cross-belt drive crossbolt cross bond cross box cross bracing crossbreed cross-cap cross-color cross compiler cross-correlation

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。