In civil aviation transportation, the exchange of transportation service is the economic content and the contract for aviation transportation is the necessary form of law.

在民用航空运输中，运输服务的交换是其经济内容，而航空运输合同则是其必然要采取的法律形式。

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OpenX products, including OpenX Enterprise, OpenX Market, OpenX Lift and JumpTime provide a unique Software-as-a-Service platform by combining ad serving, an ad exchange, a Supply Side Platform and content valuation.

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