“褐煤”用英语怎么说？

“褐煤”的拼音为：hè méi...

褐煤油是从褐煤中得来的防腐油.Lignite oil is creosote derived from lignite tar.因此, 传统的煤层气含量确定方法不适用于褐煤.Therefore, the conventional gas content measurement is invalid to lignite.大雁二矿煤种为褐煤, 属易自燃发火煤层.Coal Mine, its coal seam is easily spon...