“preliminary estimate”的概念、定义、翻译、参考文献-科学参考

单词	preliminary estimate
释义	preliminary estimate 初步概算设计概算
随便看	gravity formula gravity fractionation gravity froster gravity fuel feed gravity fuel system gravity gasoline tank gravity gliding gravity gliding tectonics gravity gradient gravity-gradient attitude control gravity gradient centrifugation gravity gradient satellite gravity gradient test satellite gravity gradiometer gravity ground water gravity groundwater gravity hammer gravity haulage gravity head gravity head feeder gravity-head feeder gravity heater gravity heating gravity-held check valve gravity high

科学参考收录了1248194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。