Acid - leaching reactor is the key instrument for preparing poly aluminium chloride ( PAC ) from kaoline.酸浸反应器是高岭土制备聚合 氯化铝 (PAC ) 的重要设备.The original burnt whiteness of Beihai kaoline is 76 % ~81 %, the whiteness subject ...
New York and London are two great marts of the world.纽约和伦敦是世界两大商业中心.The British navy boarded the vessel and towed it to New York.英国海军登上船，把它拖到纽约。No city, Tel Aviv or Jerusalem included, is home to more Jews than New York....
The plastic-covered seat has a few small splits around the corners.塑料面椅子的四角上有几道小裂缝。The river splits into three smaller streams at this point.这条河在此处分成三条小河.Usually only a trained dancer can do the splits.通常只有训练有素的舞蹈演员才会劈叉....