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
G2 X-141.634 Y18.401 I16854.629 J322.27
7 y6 F  q# r3 [5 P0 z9 E+ D+ FG1 X-141.662 Y19.962
* H: M9 j* \/ o) g- H( rG3 X-141.765 Y28.091 I-5881.088 J-70.733
. H: k% f  e& v7 L+ ]G1 X-146.231
X-146.267 Y25.715
0 g6 B* H1 v6 j3 Q* Y' B/ _9 {3 TX-146.299 Y23.574
1 H0 a. X" ^( K/ ^4 |$ d2 {; w  q