“级系”概念、定义、翻译-科学时代

单词	级系
释义	请查阅级系--谱系
随便看	Bell--Marie bell metal bell mouth bell-mouth inlet bell-mouth intake bell muzzle Belloc，Hilaire Belloeil Palace Bell Operating Companies Bell Operating Companies--Bell Operating Companies (BOC) Bell Operating Companies (BOC) bellow bellow bellow pressure gauge bellow pump bellows bellows bellows bellows bellows bellows bellows compensator bellows differential pressure transducer bellows-fish bellows pipe

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。