“double circulation”概念、定义、翻译-科学时代

单词	double circulation
释义	生物学词汇手册 double circulation 双重循环
随便看	Television Broadcasts Limited television cable television camera television camera television camera television camera television camera television camera dolly television camera lens television camera tube television camera tube television cartridge television cassette television code television commerce (T-commerce) television console television-controlled missile television debate television detection television director television documentary television documentary film television drama television drama television education

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

double circulation