In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model.

为了解决高速公路路网潜在事故的救援问题，应用机会成本方法建立资源派遣决策模型。

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This paper presents a LABVIEW based on the sound card and data acquisition system, the method simple, cost-effective.

本文提出了一种基于LABVIEW和声卡的数据采集系统，该方法实现简单、性价比高。

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But among the key barriers to expanded deployments of CO2-based EOR are the lack of economic CO2, the lack of cost-effective method of sequestering and transporting it, and the cost of compressing the gas.

FORBES: New Markets Emerge for Carbon Dioxide