E.g.7用一片直径为2.5厘米的不锈钢圆片作阴 极，用一根螺旋状铂丝作阳极，阴极置于阳极 之上约5毫米。 A stainless steel disk 2.5 cm in diameter is used as cathode,and a platinum spiral wire is used as anode,fitted about 5 mm above the cathode. The cathode is a 2.5 cm diameter stainless steel disk,and is set about 5 mm above the anode,a platinum spiral wire. Chapter 4 AdequacyE.g. 7 用一片直径为2.5厘米的不锈钢圆片作阴 极，用一根螺旋状铂丝作阳极，阴极置于阳极 之上约5毫米。 A stainless steel disk 2.5 cm in diameter is used as cathode, and a platinum spiral wire is used as anode, fitted about 5 mm above the cathode. The cathode is a 2.5 cm diameter stainless steel disk, and is set about 5 mm above the anode, a platinum spiral wire. Chapter 4 Adequacy