English translation for "煤工业分类"

industrial cla ification of coal
industrial classification of coal
industrialcla ificationofcoal

Similar Words：

"煤港" English translation, "煤高温裂化器" English translation, "煤膏" English translation, "煤膏单体" English translation, "煤工尘肺" English translation, "煤工业分析" English translation, "煤工艺试验" English translation, "煤工艺性" English translation, "煤工作面注水法" English translation, "煤古植物学" English translation