“有效成分”概念、定义、翻译-科学时代

单词	有效成分
释义	纺织词汇手册有效成分 active ingredient
随便看	velocity gradient velocity gradient velocity gradient velocity gradient tensor velocity graph velocity graph velocity head velocity head velocity head velocity head velocity head velocity head velocity head velocity-head tachometer velocity index velocity in free space velocity limit velocity limiter velocity line velocity-load diagram velocity matching velocity measurement velocity measuring thermistor velocity meter velocity method

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。