Tip 5: Make sure that chosen key fields actually reflect the queries to be made.

技巧5：确保选定的关键字段真实地反映要做的查询。

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Tip sample distance control system is the key part of scanning near field infrared microscopy.

针尖样品的距离控制系统是扫描近场红外显微镜的重要组成部分。

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Tip 2: Listen for key words.

听着要害的话。

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Tip 2: Listen for key words.

听着要害的话。

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