名词
中文翻译：干线
同义词：
['dry-line', 'dry-wire', 'dry-pipe']
例句：
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1.The engineer carefully marked the dry line on the map.
工程师小心地在地图上标出了干线。
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2.The construction crew was working diligently to clear the dry line before the storm hit.
施工队伍正努力工作，在暴风雨来临之前清除干线。
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3. The dry line is a critical part of the pipeline system that must be maintained at all times.
干线是管道系统的关键部分，必须时刻保持维护。