词语长焰煤
解释gas coal;jet coal
长焰煤long flame coal详细»
长焰煤jet coal;kennel coal详细»
长焰煤free-burning coal;long-flame coal详细»
长焰煤〔名词〕cannel coal详细»
长焰煤candle coal;long flame bituminous coal;long flame coal详细»