“presphygmic period”的概念、定义、翻译、参考文献-科学参考

单词	presphygmic period
释义	presphygmic period 排血前期
随便看	front head gearbox (直升飞机的) front-head release port front-heavy car front-hinged bonnet front hook front hull plate front idler front idler sprocket front idler wheel frontier frontier defence inspection station frontier electron frontier node frontier science frontier trade front index plate front intake door frontispiece front jockey wheel front joint carrier front knife plate (梳棉机) front lamp front lay front lens front lens mount

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。