Coalen.科尔
coaln.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
coal loading煤装载
coal tripper卸煤装置
coal culture煤文化
coal washing洗煤
coal samling煤炭采样
coal breakern.碎煤机
coal variety煤种
coal thrower抛煤机
Coal jigging跳汰选煤
coal reserve煤的储量