Object 'x_SpanSegment1' changes the value of Object Flag: Indestructible to true.
Object 'x_SpanSegment2' changes the value of Object Flag: Indestructible to true.
Object 'x_SpanSegment3' changes the value of Object Flag: Indestructible to true.
x代表桥梁命名,后面数字代表桥梁节数