It's a single rotor helicopter powered by batteries made by US Hybrid.
萤火虫项目是一种单旋翼直升机，使用美国混合动力(US Hybrid)公司制造的电池。
On the basis of kinematic analysis of rotor and gimbal guideway, the rigid body kinematic models of single rotor and rotor with the gimbal guideway were derived.
在对电机转子和滑轨支架进行运动学分析的基础上，给出了电机转子的单刚体运动学模型和带有滑轨支架的刚体系运动学模型。
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