“protraction”概念、定义、翻译-科学时代

单词	protraction
释义	力学词汇手册 protraction 延长，伸展
随便看	logarithmic scale logarithmic scale logarithmic scale logarithmic scale logarithmic series logarithmic-series distribution logarithmic spiral logarithmic spiral logarithmic strain logarithmic tacheometer staff logarithmic transformation logarithmic velocity profile logarithmic viscosity number log assemblage log assortment log barking logbook logbook log book log bundle log bunk log cabin log carriage log-chi square distribution log conversion voltmeter (LCVM)

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。