经测试，飞机的轴驱动升力风扇推进系统可产生超过性能需求的垂直推力比。
The aircraft’s shaft-driven lift fan propulsion system produced more vertical thrust than needed to meet performance requirements.
“升力推力”飞行器是根据新世纪对高超声速飞行器的需求提出的一种新型飞行器概念，它可以使飞行器的升阻比得以有效提高。
This paper made some analysis on techniques of the concept and power for the "lift-thrust" aircraft, and looked into its future development.
在技术创新过程中，需求拉力与科技推力并非两个分立的力量。
Demandpull and Technologypush are not the independent forces in the process of technological innovation.
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