常见例句双语例句Under the control of alluvial-proluvial deposition, Jiujialu Formation consisting of claystone (mudstone) , bauxitic rock, bauxite, ferruginous rock formed in it.负地形中沉积了由粘土岩、铝土岩、铝土矿、铁质岩及赤铁矿等组成的九架炉组。 返回 bauxitic rock