“pump check valve”的概念、定义、翻译、参考文献-科学参考

单词	pump check valve
释义	pump check valve 泵的止回阀泵止逆阀
随便看	purchase allowance purchase and supply of parts purchase average cost purchase beyond state quota purchase-block purchase book purchase budget purchase by grade purchase by state quotas purchase cardinals purchase contract purchase cost purchased finished materials purchase discount purchase discounts and allowances purchased life annuity purchased parts purchase estimate purchase expenses purchase farm produce and sideline prducts purchase goods on a selective basis purchase in advance purchase investigation purchase invoice purchase journal

科学参考收录了1248194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。