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ARJ 21支线机的航空电子系统方案正在开始招标的准备工作。尽管是选择供应商,但是仍然需要学习许多东西,也需要改变一些东西
ARJ 21 regional aircraft avionics program is beginning to tender for the preparatory work. Despite the selection of suppliers, but still need to learn a lot of things, but also need to change something