这种形式具有连接接触面积大，间隙小，单位面积压力小，抗水平扭矩能力强，接点稳定性强等特点。
This form has the characteristics of large connection contact area, small clearance, small unit area pressure, strong anti - horizontal torque ability and strong contact stability.
在测试时流过接点的电流过大也能使接触区域发生细微的物理变化。
Excessive current through the contacts during testing can cause a physical change in the contact area on a microscopic level.
图4 - 42说明用来测试一个接点的接触电阻的基本配置。
Figure 4-42 illustrates a basic configuration for testing contact resistance of a contact.
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