“边际频数”概念、定义、翻译-科学时代

单词	边际频数
释义	动力与电气工程词汇手册边际频数 marginal frequency
随便看	back pack backpack backpacker back-packing cure backpack journalist backpack strip backpad back page back page back page back panel backpart backpat backpatching back pay back pay back pay back pay back pay back pay back payment back payment back pillow backplan backplane

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。