In dyeing, traditional temperature raising speed and dosingmethod are improved.
改进传统染色升温、加料方法。
2
In practice, for different wastewater or different coagulant dosage, the best dosingmethod and dosing spot need determining by experiments.
在实践中，针对某种废水、某种混凝剂，应通过试验确定相应的最佳投加方式和投加点。
3
After the short-cut nitrification was realized, chemical dosage could be saved and short-cut nitrification maintained by means of changing the chemical dosingmethod.