第十六条航线分为固定航线和临时航线。
Article 16air routes are categorized into permanent and temporary ones.
班轮在固定港口之间按固定航线航行，并提前发送信息。
Liner sails in the fixed route between fixed ports and sends sailing information in advance.
临时航线通常不得与航路、固定航线交叉或者通过飞行频繁的机场上空。
Normally temporary air routes shall not intersect airways or permanent air routes, or pass over aerodromes that have heavy air traffic.
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