Reduced demand for electricity coal in Qinhuangdao coal prices may be some adjustments, could be a catalyst for increased thermal power unit.是什么意思_Reduced demand for electricity coal in Qinhuangdao coal prices may be some adjustments, could be a catalyst for increased thermal power unit.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句