“principal moment”概念、定义、翻译-科学时代

单词	principal moment
释义	力学词汇手册 principal moment 主矩
随便看	subulate subulate leaf sub-umbilical throbbing sensation sub-underwrite sub-underwriter sub-underwriter sub-underwriter sub-underwriting sub-underwriting commission sub-underwriting contract subungual hematoma subunified command sub-unit subunit sub-unit subunit subunit subunit vaccine subunit vaccine subuniverse suburb suburb suburb suburb suburban

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。