名词短语
中文翻译：关节销中心线
同义词：
['knuckle pin', 'centerline']
例句：
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1.The car's steering wheel is attached to the knuckle pin center line.
汽车的方向盘连接到关节销中心线。
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2.The engineer measured the center line of the bridge to ensure its stability.
工程师测量了桥梁的中心线，以确保其稳定性。
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3. The construction crew carefully marked the center line of the new road.
施工队伍小心地标出了新道路的中心线。