The paper studies methods of utility system energy synthesis and optimum design by using mathematic programming, which is an effective tool.

本文采用数学规划这一强有力的工具对公用工程系统能量综合和最优设计方法进行研究。

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Listing 3 shows the implementation of the utility methods I wrote.

清单3显示了我所编写的实用方法的实现。

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You've also been introduced to an example set of utility methods that remove much of the repetitiveness involved in setting the required accessibility values.

本文还为您介绍了实用程序方法的示例集，它消除了设置必需的可访问性值所涉及的大量重复劳动。

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This disagreement might come from utility companies using various methods of transmitting electricity.

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That means someone installing the smart wiring in the walls of buildings, the network firm providing the platform connecting the smart devices, the gadget-makers that provide an Apple-like user experience for every fixture, and the next-generation utility offering new forms or methods of energy delivery.

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In that situation, the National Transportation Safety Board assigned much of the blame on the utility, saying that it had no methods in place to detect structural weaknesses in its pipeline.

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