????:1?????:????????

2??????????

3???????

4?????????

5???0750cc????

6???7??,????ARJ21????,?10??????????38???????????????

ARJ21?EU2977??????,????,????1628??,??3??????????????????????,????????????ARJ21??????????,????????????????????????????????????????,?????????????????????????????,???

?,??,????“??????????????????????”?????,????,????,??????????????????????,???????,?????,??????“?????”,?????????“??”????

????????????ARJ21???2016???????????????????????6?????????????,???1300??2023?6??????????,??,???????????,??????9???ARJ21??,?????43??????????????“???????????????”??,???????23?,????????????92%,??????????????“??????????”????????????

(?? ?? ??? ??)

??????????????:????