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石煤是啥东西?煤就煤呗,为啥要在前面加个“石”字呢?“石”与“煤”怎么能混为一谈呢?看了下文,您就知道了。 石煤,顾名思义,就是石头一般的煤。为什么说它象石头一般呢?主要因为它含有大量矿物质。矿物质又是什么呢?矿物质吗,就是形成石头和泥土的物质。因此,这种煤在组成物质上象石头,故称之为石煤。其次是它变质程度很高,大多数坚硬如石,这就是石煤的名称由来之二。 石煤很特殊,在许多方面与一般的煤不同,概括起来有下列5点:
Stone coal is what thing? Coal on the chant, why in front of adding a “stone” word? “Stone” and “coal” how can be confused? Read the following, you know. Stone coal, as the name suggests, is a stone-like coal. Why is it like stone? Mainly because it contains a lot of minerals. What is mineral? Mineral, that is, the formation of stone and soil material. Therefore, this kind of coal in the composition of material like stone, so called stone coal. Second, it is a high degree of metamorphism, most of the hard stone, which is the origin of the name of stone coal two. Stone coal is very special and in many ways different from the average coal, the following five points can be summed up: