词汇	万能三角板
释义	万能三角板 universal set-square
随便看	family of characteristic family of characteristic curve family of characteristic curves family of characteristics family of circle family of circles family of closed sets family of clouds family of comets family of computers family of confocal centred conics family of confocal conics family of confocal parabolas family of confocal quadrics family of conjugate prior distribution family of conjugate prior distributions family of continuous mappings family of continuous seminorms family of convex sets family of crystal planes family of curve family of curves family of cycles family of cyclones family of deformations