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便携式直流电子镇痛器是依靠给人体皮肤通以短暂的脉冲电流来刺激皮下神经，从而起到镇痛作用。在很多情况下，其止痛效果与服用强力止痛药相同，但不存在止痛药的毒副作用。这种镇痛器有两路输出，两对电极。一般疼痛可使用一路输出，对于大面积或深部位的疼痛则可同时使用两
The portable DC electronic analgesic device is used to stimulate the subcutaneous nerve by applying a short pulse current to the human skin, thereby playing an analgesic effect. In many cases, the analgesic effect is the same as taking a powerful painkiller, but there are no toxic side effects of analgesics. This pain reliever has two outputs, two pairs of electrodes. One output can be used for general pain, and two for both large or deep pain