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an electronic device that uses a small electrical current to control a larger current, acting like an automatic switch
an electronic device that receives radio or television signals and retransmits them with increased power
the act of passing something along from one person or group to another
an athletic race in track and field where teams of runners compete by sequentially passing a baton from one teammate to the next over a set distance
a crew of workers who relieve another crew
a fresh team to relieve weary draft animals
to pass on information or messages from one place or person to another
to control or operate a system or device by using an electromechanical switch that opens and closes circuits
to broadcast a program by receiving signals and passing them on
