| http://www.w3.org/ns/prov#value | - The motor control unit according to the claim 3 characterized in that the motor has four terminals including three input terminals for changing the rotational speed of the motor to become any of high, middle, and low speeds by selecting on-off states of the three input terminals, and each of the relays is respectively connected to each of the three input terminals, wherein the relays can switch th
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