环形角度尺（Circular angle ruler）

这款设计精巧的活动角尺，堪称角度测量的得力助手。它能够极其方便且精准地分辨出各种各样的角度，无论是锐角、直角还是钝角。而且，角尺上标注的数值清晰醒目、排列规整，一眼看去就能轻松辨认，大大提高了使用的便利性和效率。

This exquisitely designed movable angle ruler can be regarded as a powerful assistant for angle measurement. It can easily and accurately distinguish various angles, whether they are acute, right, or obtuse. Moreover, the values marked on the angle ruler are clear, eye-catching, and neatly arranged, making them easily recognizable at a glance, greatly improving the convenience and efficiency of use.

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