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n.伸肌；分度器；伤处异物摘出器
1、protract nrcs───绘制nrcs
2、protrusion definition───突出定义
3、protrusion define───突出物定义
4、protraction───n.伸长，延长；制图
5、protracted definition───冗长的定义
6、protrudes hindi───不突出
7、protract home───延长回家时间
8、protrudes out───突出
9、protracted crossword───长填字游戏
10、protracted───adj.拖延的；v.拖延；绘制；伸展（protract的过去分词）
1、Specification for protractors for drawing office use───制图室用分度规规范
2、Lay out plate, sheet steel or other heavy metal and mark bending and cutting lines on work piece using protractors, compasses and drawing instruments or templates.───铺设莱板，钢板或其他重金属，用量角器，圆规和绘图工具或模板在工件上标记弯曲和切割线。
3、Mr Willis has sold out of protractors. I expect everyone wants 60 degrees. Willis───先生的量角器都卖完了。我想每个人都在量60度角呢。
4、Specification for bevel protractors (mechanical and optical)───斜量角规（机械与光学式）规范
5、I took a clear plastic tube and attached two circle protractors that could be rotated up and down the tube.───我找来一只透明的塑料试管，然后将两支可以旋转并上下移动的量角器接到试管上。
6、Draughting instruments with or without graduation. Part 2 : protractors.───带刻度或不带刻度的绘图仪器.第2部分：量角器
7、The double-sided protractor comprises two identical protractors and is structurally characterized in that a rotating shaft is arranged in the center ofthe two overlapped protractors.───本实用新型包括两个相同的量角 器，其结构要点是在上下两个叠加量角器的中心上设置有转轴。
1、Methods: The external noses of 338 adults and 83 adult cadavers were measured with slide callipers, triangles and protractors .
2、After installing the protractors , check the assembly for squareness prior to using the machine.