The smart rotor technology is the present hotspot in the helicopter world.
智能旋翼技术是目前直升机界的研究热点。
The Mi-26 is the largest in the world serial Soviet transport helicopter.
米-26是世界上最大的前苏联系列运输直升机。
Super - Mini unmanned helicopter is a hotspot of the research in the world.
超小型无人驾驶直升机是近期研究的热点。
Super - Mini unmanned helicopter is a hotspot of the research in the world.
超小型无人驾驶直升机是近期研究的热点。
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