名词
中文翻译：扩展电路
同义词：
['extended circuit', 'extension line', 'extended wire']
例句：
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1. The new phonehas an extension circuit that allows you to make calls from anywhere in the house.
这款新手机有一个扩展电路，可以让你在房子的任何地方打电话。
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2. In this circuit, the current flows through the resistor and into the ground.
在这个电路中，电流通过电阻器流向地面。
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3.The engineer designed a circuit that could detect any unusual energy readings.
工程师设计了一个电路，可以检测任何异常的能量读数。