%0 Journal Article
%T THECONSTITUTIONOFCOAL
%A CHUNG
%A YU
%A WANG
%J 地质学报
%P 79-91
%D 1923
%X InregardtotheknowledgeoftheconstitutionsofcoalwearestillintheDarkAges.Tothemaninthestreet,coalismerelyadirtymassofcombustiblematter;totheengineeritisgenerallythoughtofintermsofitscontentsincarbon,velatilematter,moisture,ashandsulphur;
%K 和血
%K 双切口
%K 双山
%U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=19230Z105&flag=1