ˮ̎wSVٿ
ʡwS|(zh)cwSwSzYɵcy(tng)wVϲͬЏЧϸˮ棬϶ʴ^V^УVӿ϶ˮu׃С^VϴСĿ϶ֲҎ(gu)ЧʸߣVٿ죨20
wSָ
4
ʱһ
ȱë
0.45-0.5
չԣ20PH65
͉Aԡ100
60-70Kg/m3
ܛc 238
c 255
(yu) 35HCL 75H2SO4 65HNO3
ȟoӰ 10NaOH 28NH3H2O ȟoӰ