Russia is currently in talks with France on the purchase of two Mistral class helicopter carriers and the construction of two others under a French license.
俄罗斯目前正在与法国就采购两艘Mistral级直升机航空母舰以及另外两艘的建造事宜进行谈判。
A helicopter is different from an aeroplane in construction.
直升飞机的结构跟普通飞机不同。
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。
The design and the construction of a data acquisition and preprocessing system for a helicopter rotor test rig are described.
介绍了某直升机旋翼试验台的振动数据采集和预处理系统的设计和组成。
The design and the construction of a data acquisition and preprocessing system for a helicopter rotor test rig are described.
介绍了某直升机旋翼试验台的振动数据采集和预处理系统的设计和组成。
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