“比例阀”的概念、定义、翻译、参考文献-科学参考

单词	比例阀
释义	比例阀 Encyclopedia 工学比例阀释 poportional valve比例阀在气动、液压领域中，根据信号大小实现阀门开度成比例变化的控制阀。 Chemistry ＞分析化学＞仪器分析＞释义 proportional valve比例阀
随便看	natural model natural modification natural monopoly natural monopoly industry natural morphism natural moving frame natural necessity natural norm Natural novel natural nuclear reactor natural nucleotide natural nuclide natural number natural number of a logarithm natural number sequence natural numbers object natural object natural object, natural scene natural object photography natural operation natural operator natural optical background natural order natural ordering natural organic compound

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。