名词
中文翻译：线跨度
同义词：
['line length', 'line span', 'span', 'span length']
例句：
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1. The bridge is designed to span the river and connect two cities.
这座桥的设计是为了跨越河流，连接两个城市。
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2. The engineer calculated the line span of the cable.
工程师计算了电缆的线跨度。
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3. The span of the bridge is 500 meters.
这座桥的跨度是500米。