“直接展开法”的概念、定义、翻译、参考文献-科学参考

单词	直接展开法
释义	直接展开法 Encyclopedia 理学非线性振动近似解析方法释 direct expansion method直接展开法把弱非线性振动系统的解直接展开为小参数的幂级数形式的方法，是原始的摄动法。
随便看	rural handicraftsmen rural highway rural history rural hollowing rural house rural household rural household appliances earthing protection rural household biogas rural household concurrent behavior rural household contract responsibility system rural household economic organization rural household interaction network rural household investing behavior rural household livelihood rural household production management rural household professional organization rural household self-directed development capacity rural household strategic choices of activity space rural household survey rural human resources rural human settlement improvement rural human settlements rural hydro electric power rural improvement planning rural inclusive finance

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。