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支线和干线有什么区别？

2025-03-28 21:18:22

推荐回答（2个）

回答1：

干线为主，支线为辅。干线是主要线，除干线外就是支线。
1、支线是指围绕干线，扩大服务范围的辅助线路。支线是相对于干线来说的。
2、干线是交通线、电线、输送管等的主要线路。与“支线”相对。

回答2：

干线是主要城市之间的航线
支线运输是指短距离、小城市之间的非主航线运行支线飞行使用支线飞机比较经济

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