UG8.5型腔铣生成的刀路圆弧插补为什么这么大？

9lnUGS5x

G1 X-140.53 Y-45.712
$ O$ D$ Q$ A' j# V% B4 CG2 X-141.634 Y18.401 I16854.629 J322.27
$ [1 \# K5 m2 CG1 X-141.662 Y19.962
- i2 @0 G/ M+ Z. Q3 fG3 X-141.765 Y28.091 I-5881.088 J-70.733
5 \0 ~9 D9 ?. C. o) U$ ]& ~G1 X-146.231
X-146.267 Y25.715
) K" C; ^3 D- n( [* ~0 aX-146.299 Y23.574
$ R- q# u: R1 P/ o1 t1 z, V