Seven people were wounded when soldiers fired rubber bullets to disperse crowds.士兵发射橡皮子弹驱散人群时有7个人受了伤。Police moved in to disperse the crowd.警察开进来驱散人群。The fog began to disperse.雾开始散了。...
The main difficulty was failure of refractories at high temperature.其主要的困难是高温下耐火材料的损坏.The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro - duced.提供了廉价磷酸二氢铝的制备...