Use your protractor to construct an equilateral triangle.
用量角器作一个等边三角形。
A Discussion on Experiment by Demonstrating a Protractor for Radian
浅议弧度制的演示实验教学
Shown here with a wooden handle. The bevel is set from a protractor.
这一款有一个木把手，斜角要卡在量角器上。
The protractor must be placed on the pipe in the position shown below.
量角器必须放在管道上如下图所示的位置处。
Accuracy analysis on large scale geographic map with theodolite and protractor
经纬仪结合量角器大比例尺地形图的精度分析
Various distances and angles were measured with dividers, protractor and vernier caliper.
用游标卡尺，量角器和圆规分别测量各项数据。
Remove the righthand loft angle protractor by releasing the two Phillipshead screw holding the two side bars.
通过打开两边齿轮的螺丝, 将右边的量角器取出。
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