名词
中文翻译：提升弧线
同义词：
['elevation arc', 'elevation curve', 'elevation line']
例句：
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1. The engineer calculatedthe elevation arc of the building to ensure its stability.
工程师计算了建筑物的提升弧线，以确保其稳定性。
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2.The construction crew was working on the elevation arc of the new bridge.
施工队正在修建新桥的提升弧线。
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3. The surveyor measured the elevation arc of the terrain to determine the optimal route.
测量师测量了地形的提升弧线，以确定最佳路线。