trial throw
1.Made use of the plum state the raw water that some water factory use to carry on the ClO_2 and Cl_2 to combine to disinfect effect and it to the on trial research that disinfects the vice- outcome control result, analyzed the ClO_2 and Cl_2 hurl to add in proper order, throw to add quantity and throw to add a combination to disinfect born influence regulation of the result and its chloroform.
