Owing to its high tech content and unique flight ability, helicopter is playing a more and more important role in the construction of national economy, and becoming a new economic increase point.

• 直升机由于其高技术含量,以及独特的飞行能力,在国民经济建设中正发挥着愈来愈重要的作用,并成为一个新的经济增长点。