砂砾(sand gravel或gravel)指的是砂和砾石的混合物,小卵石与巨石(一种受水或天气侵蚀而成的岩石)也被称为砂砾。在砂砾,砂石(sand),淤泥(silt)和黏土(clay)中,砂砾是最大的,直径大于2mm,砂其次,直径小于2mm,淤泥第三,直径小于十六分之一毫米,黏土(粘土)最小,直径小于二百五十六分之一毫米。
n. gravel
misc. land waste ; granule: grit
雨正静静地下着,砂砾车道上积了一滩滩的水。
It was raining quietly and steadily and there were little pools of water on the gravel drive.
我们在黑暗中,在松软的砂砾上不停地走啊走。
该系统由两个筒仓构成,每个筒仓装满磨碎的岩石,例如砂砾。
Its system consists of two silos filled with a pulverised rock such as gravel.
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