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electrical relay

/ɪˈlɛktrɪkəl ˈriːleɪ/

翻译: 一种由电流控制的电气开关,利用电磁铁机械地闭合或断开触点,使小功率信号能控制大功率电路。

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phrase

/ɪˈlɛktrɪkəl ˈriːleɪ/C1formaltechnical
  • zh一种由电流控制的电气开关,利用电磁铁机械地闭合或断开触点,使小功率信号能控制大功率电路。
  1. Electromechanical switchB2formal

    An electrically operated switch that uses an electromagnet to mechanically open or close contacts, allowing a low-power signal to control a high-power circuit.

    zh机电继电器

    • The electrical relay in the control panel activated the motor.
    • Engineers use an electrical relay to isolate different parts of a circuit.
    • A faulty electrical relay caused the machine to stop working.
  2. Signal repeaterB2formal

    A device that receives a weak signal and retransmits it, often used in telecommunications to extend the range of a signal.

    zh电信中继器

    • The electrical relay boosted the radio signal across the valley.
    • Data networks use electrical relays to maintain signal strength over long distances.
    • The technician installed an electrical relay to improve communication.