trace's

He wrenched off the enormous padlock himself with a bar of iron and let the light of day into the little cabin which did indeed bear the trace's of the massacre in the stains of blood on its woodwork, but contained nothing else except a wisp of long hair and a woman's earring, a cheap thing which Peyrol picked up and looked at for a long time.

The Rover 1923

This delay can trace's signal to aid in general purpose use as single sweeps; triggered sweep that is called spectrum analyzer; sampling oscilloscope or output stage:

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