Rostekhnologii's partnership with United aircraft to support the development of domestic aircraft programmes is just one step of that process.
Rostekhnologii和联合飞机签署合作伙伴关系支持研发本土客机项目只是合作的第一步。
Based on concurrent engineering, the development process of the environment control system for aircraft and the structure of system design are analyzed.
基于并行工程方法，分析了飞机环境控制系统的研制流程和系统设计的结构层次；
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