The big molecule of coal break down by the additive affixture,it can accelerate releasing of coal volatiles,make the coal lower ignition temperature.是什么意思_The big molecule of coal break down by the additive affixture,it can accelerate releasing of coal volatiles,make the coal lower ignition temperature.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句