Its centre is in Pingguo county. It consists with the administrative center of the ancient si 'en prefecture.

其中心在今平果县，它与古代思恩府的行政中心是相一致的。

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The Qing Dynasty edition of "Songyang county", "Wang Si mountain in the county, forty miles southwest, six thousand cubits high, there would come and go during the cloud: ancient wood plastic.

清光绪版《松阳县志》称，“望祀山，在县西南四十里，高六千丈，时有云气出没其间，云：古柴塑处也。

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A river reach adjacent to the Cin-Shuei Bridge of Ding-Zi-Lan-Keng Creek in Shuang-Si Township, Taipei County was selected as a spot of study.

本文以台北县双溪乡丁子兰坑溪亲水桥上下游约300公尺河段为栖地改善研究地点。

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