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n.伸肌；分度器；伤处异物摘出器
1、protractors───n.伸肌；分度器；伤处异物摘出器
2、proproctor───n.（英国大学中的）副学监
3、retractor───n.[外科]牵开器；收缩筋；食言的人
4、protract───v.延长；绘制；伸展（身体部位）
5、protracts───v.延长；绘制；伸展（身体部位）
6、protracted───adj.拖延的；v.拖延；绘制；伸展（protract的过去分词）
7、prorector───推进器
8、protector───n.保护器；保护者；保护装置；防御者
9、protraction───n.伸长，延长；制图
1、How to click on option in select box in Protractor test?───如何在点击选择框在量角器测试选项？
2、This compass serves as a protractor.───这个罗盘可用作分度规。
3、The utility model relates to a protractor, which belongs to a daily teaching aid for teachers.───本实用新型涉及一种量角器，具体涉及的是教师日常教学用品。
4、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
5、A protractor? The angle at the bottom?───量角器？角度在它的底部？
6、You can measure angles on the field with this, and measure those same angles back at your desk with a protractor.───你可以用这些工具在野外测量角度，也可以用一个测角器在你的桌子上测量这些同样的角度。
7、As if she had a protractor in her head, she also sees precise angles. "When I draw a piece of equipment, I can test run it in my mind. "───如同她的脑袋里长着一个量角器，她同样能读出准确的角度。“当我在脑袋里画一部仪器，我能在脑海里给它测试运行。”
8、Step 1: Make a tube by rolling the A4 paper lengthways and taping the ends closed. Next, cut out the protractor at the bottom of this page.───步骤一：将A4纸纵向折捲成管状，再以胶带固定端点。接著，剪下本页最下方的半圆量角器图形。
9、scale by means of a scale and protractor.───通过比例尺和量角器按比例绘制。
1、Use your protractor to construct an equilateral triangle.