    ˮɰƽʩ
    (1) ȣƼ淶Ҫʩ
    (2) ƽȣƽȶԷˮӰܴ2m߼飬϶5mm
    (3) ¶ȣ׼ȷˮˮƽ¶ȲС2%칵¶ȲС1%
    (4) 治ɡɰƤͿѣԱ֤ճᲿλι̣
(5) ǽǣӦĨԲΣԲ뾶ˮʱΪ100150mm߾ˮʱΪ50mmϳɸ߷ӷˮʱΪ20mm


