"չ"
2,2,0
"չ(һλ)",2,-1,">= 0",""
"չ(ڶλ)",2,0,">= 0",""
"չޡ"
"ͼʾ
1.ֱչʾƣչ
2.ͼΪ
   a.ȡչֶԻ򣬶λ(12)
   b.ʹòһ㣬ѡ޸ġ뿪
   c.һչȣ0ڶչȣ3
     չ
   d.ɲοޡܣչ֮޵ߡ
   

"
""
"C:\ProDoCad\ProMess\Example\Dat_ExpandCurve.jpg"
