This section details how to make surface and volume resistivity measurements with these test fixtures, as well as the Alternating Polarity and Alternating Voltage techniques for measuring resistivity.

本节详细介绍如何使用这些测试夹具来进行表面电阻率和体电阻率的测量，以及测量电阻率时使用的变换极性和变换电压的技术。

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It can analyze DPG signal, self-defined sweep signal, test of seismic channel data and geophone polarity by use of DSD returned signal through wire and wireless style.

它可对DPG信号、自定义扫描信号、地震道数据及检波器极性测试、通过有线或无线方式由DSD返回的信号进行分析。

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After connecting the battery to the battery of total output voltage test and records, in order to prevent some of the anti-access battery polarity.

电池连接结束后，要对电池总的输出电压进行测试并记录，以防部分电池极性接反。

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