玻璃釉包覆，精度高，阻值漂移小。
本实用新型测量结果漂移小，准确度高、寿命长，而且为双线制。
The utility model has the advantages of little drift for measurement results, high accuracy and long service life, and the utility model is a two-wire system.
膜有稳定的氧化还原电流峰，电位漂移小，重现性好，适合于制成新型参比电极。
POAP-Fe(CN)3-6 film has a stable redox current peak, a small potential drift and a good repeatability, and it can be used as a new model reference electrode.
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