Relays are the logic elements of a protection system which sense the fault and cause the circuit-breaker trip circuits to be energized and the breakers to open their contacts.
继电器是保护系统的逻辑元件，它感知故障，并使断路器解扣电路带电和断路器打开触点。
This article introduces a refrigeration method using the absorption chiller energized by the district heating system instead of electricity or mechanical energy in summer in Finland.
在夏季采用区域供热系统的热量作为吸收式冷凝器制冷系统的能源，可代替电和机械能源制冷。
In this representative color picture, the hot blue pool of light seen surrounding this binary system is energized by the hot surface of the faint star.
在下面这张假彩图片中，环绕双星的炽热蓝光池塘就是受那颗暗星的表面高温激发所致。
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