传统的气敏材料测试方法仅仅测试材料在与气体接触前后电阻的变化，只能反映气体吸附的结果，而不能反映吸附和解吸的动态过程。

The general measurements record only the change of materials' resistance before and after meeting gases. It reflects only the results, not the dynamic process of adsorption.

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本文设计了一套便捷、可靠的电阻点焊动态参数测试系统。

A set of convenient and reliable dynamic parameter measuring system in resistance spot welding was designed in this paper.

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用动态接触电阻测量系统进行了电磁继电器失效检测试验，监测了其触点闭合过程的接触压降。

The contacts voltage of counterpart contacts in the close course of electromagnetic relay is observed and recorded in its failure tests using dynamic contact resistance measurement system.

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