- n. 量角器,分度规( protractor的名词复数 )
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- This compass serves as a protractor .
这个罗盘可用作分度规。 - Specification for protractors for drawing office use
制图室用分度规规范 - Verification regulation universal bevel protractors
万能角度尺检定规程 - Specification for bevel protractors mechanical and optical
斜量角规 - A discussion on experiment by demonstrating a protractor for radian
浅议弧度制的演示实验教学 - Vernier universal bevel protractor
游标万能角度尺 - Dial universal bevel protractor
带表万能角度尺 - 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 - Drawing ruler-protractor
绘图仪尺.量角器 - Air navigation protractor
空中导航用量角器