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....
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 ...