“standard sand”的概念、定义、翻译、参考文献-科学参考

单词	standard sand
释义	standard sand [`stan·dǝrd `sand] ^MATERIALS A silica sand that is free of organic matter and is used in making test samples of concrete and cement.
随便看	aircraft instrumentation aircraft instrument panel aircraft low-approach system aircraft machine-gun turret aircraft noise aircraft propeller aircraft propulsion aircraft pylon aircraft report aircraft rocket aircraft testing aircraft thermometry aircraft vectoring aircraft weather reconnaissance air crossing air-cure air current air curtain air cushion air-cushion vehicle air-cut air cycle air cylinder air defense air-defense artillery

科学参考收录了103327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。