本文阐述了过干安城区的特殊观测系统设计及其效果。

The paper expounded the design of special geometry in Qian 'an urban area and its applied effects.

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他在厨房里翻腾了一阵，带着一瓶安如葡萄酒回到工作室里来，我只好坐起来和他干一杯。

He rummages around in the kitchen a while and then cames back to the studio with a bottle of Anjou. I have to sit up and down a glass with him.

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他认为安不适合干那项工作，是吗？

He doesn't think Ann is fit for the job, does he?

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