通过这个清晰透镜，问题变为挑战，挑战变为学习的机会。

Through this clear lens, problems become challenges, and challenges become opportunities for learning.

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在2.1图中，环绕中心维度的外部维度是研究人员对问题所采取的努力的透镜(或理论)，或正在进行研究的维度。

The outer circle surrounding the central dimensions in Figure 2.1 represents the lenses (or theories) that researchers bring to bear on the questions or dimensions being studied.

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当然还有很多问题需要解决，例如，怎样避免前端透镜的模糊和冻结？

Of course, there were a lot of problems that were necessary to solve. For example, how to deal with misting or freezing of a front lens?

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