电键（或称扳键），广泛应用在长话交换设备的各种机台的塞绳电路、监听电路、座席电路以及各种机架的信号电路中。
n. keyset ; key ; manipulator
misc. telegraph key ; key button
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这些改进是否足以使虚拟键盘完全取代传统的机电键盘？
Will these improvements be enough for the virtual keyboard to entirely displace the electromechanical keyboard?
所以虚拟键盘不一定非要在每个方面效法如今的机电键盘。
So virtual keyboards don't necessarily have to emulate today's electromechanical keyboards in every respect.
控制台线路指的是从电键到关键系统普通设备的扩展的电路。
Key Station Line refers to the circuit which extends from the key set to the key system common equipment.
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