“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	airflow stack effect airfoil airfoil profile airfoil section airfoil shape airfoil-vane fan airframe air-fuel mixture air-fuel ratio air furnace air gage air gap air gas airglow air grating air-ground communication air gun air hammer air-handling system air-handling unit air-hardening steel airhead air heater air-heating system air heave

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。