beam compass,trammel是什么意思

中文翻译长圆规

网络释义

1)beam compass,trammel,长圆规2)beam compasses,长臂圆规3)compasses, beam,长杆圆规4)trammel,长圆规,椭圆规5)divider,圆规，分规6)Use your compasses to draw a circle.,用圆规画圆.