“四元系”概念、定义、翻译-科学时代

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。

单词	四元系
释义	矿业工程技术词汇手册四元系 quaternary system
随便看	maxims of conversation maximum maximum maximum maximum maximum maximum maximum maximum maximum absorbed dose maximum admissible concentration maximum admissible load maximum allowable concentration maximum allowable concentration for any fire maximum allowable concentration（MAC） maximum allowable emission quantity maximum allowable length of impulse tube maximum allowable pollutant concentration maximum allowable pressure of gas appliance maximum allowable velocity maximum allowable velocity of flow maximum altitude attack maximum altitude bombing maximum altitude interception maximum amount limitation