1.ˮ|(zh)
Ҏ(gu)4מɳ|(zh)ÿOЪMˮڼ̶ͶDcͶDcײˮĨ⻬e6~8ƽמˣOaW(wng)ÿ2_0.9ǧߣEORO-
2ͣʽCˮԴɽˮˮ18~24ˮˮ|(zh)oȾ2.B(yng)
B(yng)ǰÿʯҏص(jng)ԇˮȫͶ\~NB(yng)ܶȞ700β/B(yng)ĮҪ30%ʳ}Һ~w
3.
\~wL25Ԕzʳˮϣֵ≥35%Ͷιǰëˢ̸Ƀʳ_ذͶι^Ҫ0.5%غùأ50ǧDϰ100ˣͶDʞ飺~w50~200ͶDʞ10%~4%;~w200~1000ͶDʞ4%~2.5%;1000Ϟ2.5%~1%,20犃(ni)ˡ
\~Ҫ^ز׃mԲճҪ_ˮ5ppm,ˮ|(zh)ҪˬLزE׃≺ҪѲ^ȡЧAʩ
ڳB(yng)ֳ\~^УҪÿ30þW(wng)һЩ\~x،͉ѣ֮B(yng)ֳ@DZC\~B(yng)ֳ߮a(chn)Ҫg(sh)ʩ(jng)^\~_70%_ʳϲ͉