请问我在用MASTERCAM XMR2的时候开始是好的过二个小时以后就会出现如下图的报警信息 9 a1 x( R/ E# w+ i. E1 z) S8 j) Z<The SIM has become disconnected ( D3 o# y( N2 M
mastercam will be automatically shut8 z4 E0 J& X+ v/ Z3 p6 P
you will get one chance to saveyour>7 j3 p z& S7 M1 C) B
然后就自动关闭. ! F7 ]5 G' Q; a. O6 z
那位大侠能帮帮我啊