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脑电图电极中的耳电极，无论是进口与国产仪器，在使用过程中多年来一直是经常遇到的难点。耳电极一般有两种，一种是不锈钢丝制成的耳夹，其未端各焊一个直径１ｃｍ的锡合金圆盘略凸银面电极或塑料壳镶嵌的银面耳夹电极。直接夹在耳垂上。另一种是直径１ｃｍ的银质圆盘状电极?
The ear electrodes in the EEG electrodes, both imported and domestic instruments, have been frequently encountered during the use of the electrodes for many years. There are generally two kinds of ear electrodes, one is an ear clip made of stainless steel wire, and each end thereof is welded with a tin alloy disc with a diameter of 1 cm slightly convex silver face electrode or a silver face ear clip electrode inlaid with a plastic shell. Clip directly on the earlobe. The other is a 1cm diameter silver disk-shaped electrode?