封装后测试 接触测试（Contact test） 老化测试（Burn-In test） 电参数测试（Electrical parametric test） 功能测试（Functional test） Microelectronic Cen...
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而要研究在电接触测试中尘土颗粒的影响，就必须有相应的设备仪器进行实验和观测。
Device must be needed for experiment and observation in order to research the influence of dust in electric contact testing.
采用地下参比电极“接触测试”法，对套管实施保护后的纵向深度套管保护电位进行定量测试。
By means of contact test with a reference electrode underground, we measured the distribution of casing protection potential along vertical depth.
根据地下参比电极接触测试原理，测试了套管被保护前后纵向深度上的套管自然电位、套管保护电位、阳极工作电位和阳极开路电位。
Through the contact test of underground reference electrode, we have tested the natural potential, casing protecting potential, the anode working potential, and the anode open circuit potential.
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