Based on utility theory, truck travelers choice models were studied through stated preference survey.

以效用理论为基础，通过意向调查研究了高速公路货车出行者出行选择模型。

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Future research need to base upon more large survey sample in individual level, or confirm other utility proxy, such as job satisfaction and subjective wellbeing.

未来亟需扩大样本量进行更大范围的实证研究，或验证其他效用代名词，如工作满意以及主观幸福感。

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Instructions for creating a utility that will survey printers to discover those experience a paper jam or other problem.

有关创建一个实用工具，借此对打印机进行调查以发现是否发生卡纸或其他问题的说明。

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Less than one tenth of utilities have moved beyond the planning stage for the smart grid and into implementation, according the results of the Microsoft Worldwide Utility Industry Survey 2011.

FORBES: Smart Grid Still Stuck in Hype Cycle

The student survey included 57 questions -- 37 on program quality and utility, and 20 on leadership and management skills -- that were used in the student ranking.

WSJ: How the Rankings Were Compiled