The teacher asked us to buy a pair of compasses.老师要求我们买圆规.Chinese compasses always point south!中国的罗盘总是指向南方!With straightedge and compasses, divide a segment of a into 2 parts.用直尺和圆规把线段a分成两部分....
The teacher asked us to buy a pair of compasses.老师要求我们买圆规.I am calibrating radio direction finder or adjusting compasses.我正在校准无线电测向仪或校正指南针.With straightedge and compasses, divide a segment of a into 2 parts.用直尺和圆规把线段a分成两...