It is convenient to preheat the coal gas and combustion-supporting air to the 1000℃.
It is convenient to preheat the coal gas and combustion-supporting air to the 1000℃.
能很方便的把煤气、助燃空气预热到1000℃左右。
It is convenient to preheat the coal gas and combustion-supporting air to the 1000℃.
能很方便的把煤气、助燃空气预热到1000℃左右。