ˮ̎wSVٿ
ʡwS|(zh)cwSwSzY(ji)ɵcy(tng)wVϲͬЏЧϸˮ϶ʴ^V^Vӿ϶ˮu׃С^VϴСĿ϶ֲҎ(gu)ЧʸVٿ죨20
wSָ(bio)
4
ʱһ
ȱë
0.45-0.5
չԣ20PH65
͉A100
60-70Kg/m3
ܛc 238
c 255
(yu) 35HCL 75H2SO4 65HNO3
ȟoӰ 10NaOH 28NH3H2O ȟoӰ