名词
中文翻译：旋转的圆弧
同义词：
['rotating circle', 'rotating polygon']
例句：
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1.The car's engine is producing a rotating arc of light.
汽车发动机正在产生一个旋转的圆弧光。
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2. The scientist used a rotating arc to measure the distance between the stars.
科学家使用旋转圆弧来测量星星之间的距离。
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3. The engineer designed a rotating arc to guide the flow of water through the pipeline.
工程师设计了一个旋转圆弧来引导水流通过管道。