fineness of grain的意思|示意
美 / ˈfaɪnnɪs ɔv ɡrein /
英 / ˈfaɪnnɪs ʌv ɡren /
细晶粒度
fineness of grain相关例句
Agate is a microcrystalline quartz ( silica ) , characterised by its fineness of grain and brightness of color.
玛瑙是一种微晶石英类矿物, 纹理细腻,色彩丰富.
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