n.量角器，分度规

原形：protractor复数：protractors

He used a protractor to measure the angle of the roof.
他用圆规测量屋顶的角度。
The geometry teacher asked students to draw an equilateral triangle using a protractor.
数学老师让学生们使用圆规画一个等边三角形。
She double-checked her calculations with a protractor to ensure accuracy.
她用圆规再次检查计算以确保精确性。
In this art project, you will need a pencil, paper, and a protractor for precision.
在这个艺术项目中，你需要铅笔、纸张和圆规来保证精度。
The architect measured all angles with a protractor before starting the construction drawings.
建筑师在开始绘制施工图之前，都用圆规精确测量了所有角度。
Students in trigonometry class were taught how to use a protractor effectively.
三角函数课上，学生们学习如何有效地使用圆规。
To construct a regular hexagon, start by drawing one side and then using a protractor to find the correct angle measurements.
要构造一个正六边形，首先画出一边，然后使用圆规找到正确的角度测量值。
The engineer marked out the necessary angles on the blueprint with a compass and protractor.
工程师用罗盘和圆规在蓝图上标出了必要的角度。
For this science experiment, we'll need a protractor to measure the angles of refraction accurately.
这个科学实验需要圆规来准确测量折射角。
The carpenter relied heavily on his protractor when building the frame for the door.
木匠在制作门框时非常依赖他的圆规。