名词
中文翻译：负弧
同义词：
['negative angle', 'negative curve']
例句：
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1.The engineer calculated the exact negative arc length of the beam.
工程师计算了梁的精确负角长度。
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2. The negative arc in the circuit was causing interference with the signal.
电路中的负角引起了信号干扰。
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3. The negative arc on the graph indicates a decrease in temperature.
图中的负角表示温度下降。