Դ
Դ220
Bczy(c)
1. ܃ɶпѲzy(c)cֵzBӣעBӷϼ^Bcz
2_C(j)ɘӣϽ늣_Դ_P(gun)Bm(x)20犺P(gun)]Դ
3x(sh)z鲣еɫ׃xɫh(hun)׃ɫǰ،(du)(yng)Ĕ(sh)֣ԓ(sh)ּy(c)ֵ
ע⣺(bio)0.10.1mg/³0.50.5mg/³
ġzy(c)
Ҋ(bio)ʾ(0.1--4ppm)
ע(xing)
]BӲܕr(sh)MܲҪ_Դֹzy(c)(ni)
Ҫzy(c)ĿӰ푙C(j)
ֹ(dng)tӰ푙C(j)
UIJܑ(yng)(dng)m(dng)̎ãֹ |