当使用时间设置比较日期范围时，您会看到两个日期滑块，而不只是一个。
When using the Timeline to set a comparison date range, you'll see two date sliders instead of just one.
你选择好想要触发的边缘极性，像脉宽触发那样设置好时间范围。
You choose what polarity of edge you wish to trigger off of, and like Pulse-Width trigger you set your time ranges.
设置探测范围及进行功能测试时建议把时间调到最小，注意：每次灯息灭后，会有约2秒后感应器恢复探测。
Set the detection range, and functional testing suggested that time to a minimum, pay attention: every light off interest rates, will have about 2 seconds after the sensors detect recovery.
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