名词中文翻译
中文翻译：服务主干线
同义词：
['mainline', 'trunk line']
例句：
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1.The service mains are essential for the operation of the city's transportation system.
服务主干线对于城市交通系统的运行至关重要。
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2.The construction of the new highway will significantly improve the service mains in the area.
新建高速公路的建设将显著改善该地区的服务主干线。
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3. The company has invested heavily in upgrading the service mains to meet future demand.
该公司已大力投资于升级服务主干线，以满足未来的需求量。