“composite death rate”的概念、定义、翻译、参考文献-科学参考

单词	composite death rate
释义	composite death rate 复合死亡率
随便看	pump characteristics pump check ball pump check spring pump check valve pump check valve ball pump circuit pump circulation pump concrete pump connecting link pump control mechanism pump control valve pump cooling pump cover pumpcrete pumpcrete machine pump cup pump curve pump cylinder pump delivery pump delivery head pump delivery test pump diaphragm pump diffuser pump direct driven press pump discharge

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。