我们用步测量一下距离，发现有90步长。

We paced off the distance and found it to be 90 paces.

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用Internet Explorer进行进一步测试，很快就会发现另一个相似的意外情况，如图3所示。

Further testing with Internet Explorer will soon reveal another similar unexpected situation, as shown in Figure 3.

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通过对甘薯叶、茎中的总黄酮含量进行了提取，以芦丁为对照品，用紫外分光光度计对其含量进行了初步测定。

This paper reported the extraction and the preliminary determination of flavonoids in sweet potato leaves and stems by UV-spectrophotometry using rutin as comparison sample.

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