development flight test造句

例句与造句

1. Multiple test aircraft may be required on major aircraft development flight test programs.
2. At this time, Boeing has only completed 20 % of the development flight tests.
3. After a longer-than-expected development flight test program, during which the name "'Citation 500 "'was tried, and a number of changes to the design, the finished aircraft was debuted with the new name "'Citation "'( Model 500 ) and received its FAA certification in September, 1971.
4. It's difficult to find development flight test in a sentence. 用development flight test造句挺难的