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- dual rotor helicopter 双旋翼式直升飞机
- This paper seeks to explore the aerodynamic performance for coaxial twin rotor helicopter to obtain fatigue load spectrum. 本文探索了共轴直升机气动力参数估算技术,用以确定其疲劳载荷谱。
- The horizontal decanter centrifuge is a dual rotor system with small rotating speed difference, of which unbalanced vibration is a “beat” signal. 卧螺离心机是一种具有微小速差的双转子系统，它的不平衡振动信号是一个拍振。
- How to separate two rotors' unbalanced weight from beat is the key of whole-machine balancing for dual rotor system with little rotation speed difference. 微速差双转子系统整机动平衡的关键是如何从复杂的拍振信号中分离出内、外转子各自的不平衡分量。
- dual rotor system with slightly different speed 微速差双转子系统
- Phenomenon and Control of Pendulum in Single Rotor Helicopter with Ducted Fan 单旋翼涵道风扇式无人直升机的钟摆现象与控制
- The shipwrecked sailors were rescued by helicopter. 遭遇海难的水手已经被直升机救起。
- The road opened out into a dual carriageway. 这条路已扩展成了复式车行道。
- The helicopter had off when we got here. 当我们到达时,直升机已经起飞了。
- We were whirled away in a helicopter. 直升机迅速把我们运走。
- The helicopter hovered over the house. 直升飞机停留在那房子上空。
- Vibration screen with dual rotors 双转子自同步振动系统
- Food is being lifted in by helicopter. 食品正用直升机空运进来。
- The helicopter landed with Joe at the controls. 直升飞机在乔的操纵下降落。
- "Helicopter" is clipped to "copter". "Helicopter"可被缩略成"copter"。
- The criminal escaped by a helicopter. 罪犯乘直升机逃走了。
- Development and Research of a Portable and Intelligent Whole-Machine Balancing Instrument of Dual Rotor System with Little Rotation Speed Difference 便携式微速差双转子系统智能化整机动平衡仪的开发与研究
- The admiral visit the ships under his command by helicopter. 舰队司令乘直升机视察他所指挥的军舰。
- Correlation of Helicopter Rotor Tip Vortex Measurement. 直升机旋翼梢旋涡度量的相关。
- His dual role as a composer and a conductor made him very busy. 他作曲家和指挥家的双重身份使他非常繁忙。
