1. Caves form when water infiltrates limestone . 水渗透石灰石则形成洞穴。
2. India's major mineral resources include coal, iron, manganese, mica, bauxite, titanium, chromite, limestone and thorium. 印度的主要矿产资源有煤、铁、锰、云母、铝土矿、钛、铬铁矿、石灰岩和钍。
3. Uses in each kind of medium degree of hardness solid material , in cement industry, limestone in broken bits , paste , chamotte, and so on mix material . 第三代新型制沙机主要用于各种中等硬度固体物料的细碎,在水泥工业中,细碎石灰石、石膏、熟料、混合材等。
英英解释
n.
1. a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals