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1·The anodic oxidation of lead sulphate is well known.

而硫酸铅的阳极氧化反应则是众所周知的。

2·It has been proved that the saturated cadmium sulphate standard cells with cadmium-lead amalgam cathode have a high emf stability and low emf temperature coefficient.

镉铅汞齐饱和标准电池具有很高的稳定性和较低的电动势温度系数。