A.色澤B.透明度C.有無沉淀D.掛壁量
A.20B.40C.60D.80
A.溫度穩(wěn)定1MINB.溫度穩(wěn)定10MINC.PH值穩(wěn)定1MIND.PH值穩(wěn)定10MIN