Adopting prior and posterior deposal system met the demands of filtrating,removing ammonia,rising oxygen,sterilizing and antisepsis.

采用前、后处理系统来满、除氨氮、杀菌消毒、增氧需。

The criminal network has at its deposal plentiful first class technical know-how and high quality equipment.

罪犯的网络把大量的第一知识-高品质设备，给销毁掉。