modification number造句

例句与造句

1. Starting in September 1942, a steel strap was fitted internally across the rear fuselage transport joint, although this was soon superseded by Mod 286 ( modification number 286 ), in which 20 alloy " fishplates " were riveted externally across the rear fuselage transport joint, while internally some of the rear fuselage frames were strengthened.
2. It's difficult to find modification number in a sentence. 用modification number造句挺难的