煤岩成分(也有稱为煤的岩性差異質),是煤炭性質上的一個重要問題;過去對這一问题多注意其定性方面,至於定量的方法到目前為止仍不够普遍的為我們所瞭解。筆者致意於本問題已久,茲將個人摸索的結果,介紹於此,以供參考,不適之處尚希讀者多予批評與補充。一、實驗程序及需用物品實驗中的先决條件,就是賞驗者必須具備在肉眼 The composition of coal and rock (also known as the lithological heterogeneity of coal) is an important issue in the nature of coal; in the past, more attention was paid to its qualitative aspects on this issue, and quantitative methods are not yet widespread enough for us to understand. The author is grateful to this question for a long time, the result of personal exploration will be introduced here, for reference, discomfort is still much hope readers criticized and supplemented. First, the experimental procedures and articles needed to experiment in the prerequisite is that the viewer must have in the naked eye