protractor的例句（protractor在句子中的用法）

• Use your protractor to construct an equilateral triangle. 用量角器作一个等边三角形。
• I can't find my protractor. 我找不到我的半圆仪了.
• To draw to scale by means of a scale and protractor; plot. 测绘用圆规和量角器划线和角; 标绘.
• This compass serves as a protractor. 这个罗盘可用作分度规.