Communications and transportation transportation by land, water, air and pipeline, loading unloading and delivery 3.

交通运输业陆路运输、水路运输、航空运输、管道运输、装卸搬运3%。

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Air cargo loading problem by backtrack algorithm is solved.

用回溯算法解决飞机货舱装载问题。

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Control circuit through the loading or unloading coolant compressor and make the air-freeze agent in the heat exchanger compressed air temperature constant.

控制电路通过加载或卸载冷冻剂压缩机而使空气-冷冻剂热交换器中的压缩空气温度保持恒定。

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Though you can reach parts of this coast by air, on regional flights out of Perth, the best way to get there is by loading up a four-wheel drive and hauling north.

FORBES: Where the Outback Meets the Sea