??????????????
????????????
1????????????
2.????%??60%? ???47%
3?PH??1%???20???5-8
4?????????
???????????
1. ?????????????????????
2. ?????????????????????
3. ???????????????????????
4. ?????????????????
5. ?????????????/??????
6. ??????????????????????????
??????
???????????????????????????????????????????????????????????????????
??????
HH-680C????????????????????????????????????????????????????????????????????
????????????1:15-20?????????
????????????1:8-12?????????
?????
??20-50g/L?120??????150-180?,50??
?????
??2-5%?o.w.f????30-50????20-30????????100??
????????????????