Command: Circle9 |4 l! o" j/ k& j! i
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: 3p" ~. ~( m Q% Y4 M
Specify first point on circle: tan to ! U4 Q$ H0 B9 K) ^# C7 _Specify second point on circle: tan to . Q4 a4 a% R7 B8 Y JSpecify third point on circle: per to 选中心线