Besides, the merits and disadvantages of each scheme and its sphereofapplication are pointed out.
此外，还指出了各种方案的适用范围和优缺点。
2
SphereofApplication: Have the strong bacteriostasis function to golden brown staphylococcus, white Cocci and Colon bacillus, etc and secret prescription.
对金黄色葡萄球菌，白色念球菌，大肠杆菌等有较强的抑菌作用。
3
This utility model has the advantage of achieving the dual effects of excision and backwash on one sewage pump, thereby widening sphereofapplication of the sewage pump.