班轮运输有三个专门要素：固定的港口，固定的航线和预定的船期表。
Liner transport has three specific components: fixed ports, fixed routes and announcing shipping time in advice.
在介绍国内内河班轮运输状况的同时，对长江干线航道状况分段进行分析介绍。
With the introduction of domestic freshwater liner shipping, the shipping channel status of Yangtzi's mainline is showed.
集装箱班轮运输公司追求的是利润最大化和成本最低化。
What container lines are in pursuit of is maximization of profit and minimization of cost.
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