We teach them survey, focus groups, in-depth interviews, " says Hai Che, marketing professor at UC Berkeley's Haas School of Business. "That can be a high-quality but low-cost method."

我们教他们调研，目标机构，深度访问，”海切说，他是～～～的营销学教授，“这将是个低成本高质量的方法.”

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The chaotic control of the model by OGY method was discussed and a new way was provided to improve the precision of the six roll UC mill.

利用OGY控制方法，对该迭代模型进行了混沌控制，为从根本上提高六辊uc轧机轧的轧制精度提供了一种新的控制思想。

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By using the method of sample survey, this paper investigated the edit situation of popup news in the three main instant messengers QQ, POPO and UC, in order to find out their character.

本文通过抽样调查的方法，对当前国内三大网络即时通讯工具(腾讯QQ、网易POPO、新浪uc)弹出式新闻的编辑状况进行比较分析，以揭示其各自的特色。

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