“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	Murchisoniacea murein muriatic acid Muricacea muricate Muricidae Muridae muriform Murinae murine plague murine typhus murmur muromontite Murphree efficiency Murray code Murray loop test Murray Valley encephalitis murumuru oil musa Musaceae Musca muscarine muscarinism Muschelkalk Musci

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