焊接后残留物少，腐蚀性小，具有极高的表面绝缘阻抗值，无需清洗即可达到极佳的ICT测试性能。

Very low residue and few causticity, with high-surface insulation resistance value, no need to wash it also can reach the excellent ICT test value.

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阻抗测试结果显示，随着浸泡时间的延长，腐蚀产物在合金表面沉积，对基体金属具有一定的保护作用。

According to the electrochemical impedance spectroscopy results, the corrosion products plating on alloys surface are partly protective to the parent metal with immersion time.

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方法：采用自行研制的人体穴位表面电阻测定仪对2 281名健康人的胃经五输穴体表阻抗进行测试，分别于春、夏、秋、冬季检测。

Methods:The impedance fluctuation on different points in Wushu was measured by a micro-computer with pressure sensor to 2281 healthy people.

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