When it is used, first clean and dry the disposed granular limestone and then spread on it the polished cere; after that polish it with thin steel wool or flannelette cloth until it brightens up.
使用时先将要处理的云石抹净及干燥，用干布将加光蜡涂上，再用细钢丝棉或绒布打磨至光亮即可。
The former can be divided into granular and crystal grain limestone, while the latter includes clastic and shaly crystal dolomite.
研究认为，该区碳酸盐岩可划分为石灰岩和白云岩两大类。石灰岩可划分为颗粒灰岩和晶粒灰岩两类；
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