Complex sentence: The same signal will cause the right switch to trigger at different times, and its output signal retains both positive and negative polarities, which produce no output when converted to DC, indicating no left-right correction is required.
Split into simpler sentences: The same signal will cause the right switch to trigger at different times, and its output signal retains both positive and negative polarities. This produces no output when converted to DC, indicating no left-right correction is required.