“褐煤”造句

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 spontaneous fire.

• #褐煤