“concentration”概念、定义、翻译-科学时代

单词	concentration
释义	工程与技术词汇手册 concentration 集中；精选；密度，浓度
随便看	Take 3 take an account of stock take a position take arms take back take back goods take charge take date take delivery take delivery takedown takedown take-down gun take fire take from alongside take-home pay take-home pay take-home pay take-home pay take-home pay take-home pay take-home pay take-home test take in take inventory

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。

concentration