... Show Test Points显示测试点，如果关闭此选项，测试点和过孔就表现为相同的形式了 Show Trace Length显示线长，实时地显示走线的长度和已布线的总长度 Centering-Maximum Channel设置最大的通道长度 ...
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许多激光测量设备有显示最小和最大尺寸的设定；操作者必须只能沿着边缘点扫描。在测量对角线长度的时候这一点非常有用；
Many laser measuring devices have setting which shows minimum and maximum dimensions; the operator must merely scan the dot along an edge. This is helpful for taking diagonal measurements.
可通过测量压痕对角线长度，直接在LCD屏幕上显示硬度值。
By measuring the length of the diagonal indentation directly in the LCD screen hardness.
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