Handling loads suspended from rotorcraft 装卸旋翼机上悬吊的货物
2.
In 1945 c . j . ghu turned his attention to rotorcraft and designed a co - axial helicopter , known as the humming bird model a 1945年，朱家仁先生制造了一架共轴双旋翼直升机，即蜂鸟一号。
3.
The research on the rotor blade - vortex interaction ( bvi ) noise is a very important aspect and a very challenging subject in the rotorcraft aeroacoustics field 旋翼桨-涡干扰噪声问题是直升机气动声学领域的一个研究热点和难点。
4.
Besides , a flying quality evaluation code of the military rotorcraft is developed , and the quality levels in hover / low speed flightwere calculated according ads - 33d ( 3 . 3 ) 3 ）节中悬停和小速度状态的各项指标，得到了开环状态的品质参数。
5.
This paper is a review of rotorcraft cfd in light of major unsolved problems , and some prospects and solution philosophy for solving them 本报告是依据未解决的重大问题、解决这些问题的若干前景和指导思想对旋翼机计算空气动力学( cfd )所作的评述。
6.
Research on the aerodynamic interaction between the rotors and components of rotorcraft have been a very important aspect and a very challenging subject in rotorcraft aerodynamics 旋翼干扰空气动力学问题一直是旋翼飞行器空气动力学的研究热点和难点之一。
7.
Ahs members cover the entire spectrum of the international rotorcraft industry including representatives from government , military , civil operators , engineers , management , and academia Ahs国际组织的成员遍及整个国际旋桨飞机工业圈，包括来自政府部门、军方、民航营运者、工程师、管理方面和学术界的代表。
8.
Joe english , an xml expert working for advanced rotorcraft technology , inc . , famously explained these problems using mental health metaphors which i copy below see Joe english是一位在advanced rotorcraft technology , inc .工作的xml专家，他以使用精神健康的比喻来解释这些问题而知名，我把他的比喻复制在下面（原文请参阅
9.
With additional capabilities in rotorcraft , electronic and defense systems , missiles , rocket engines , satellites , launch vehicles and advanced information and communication systems , the company ' s reach extends to customers in 145 countries 加上旋翼飞机、电子和防御系统、导弹、火箭发动机、卫星、运载火箭和先进信息及通讯系统等方面的研制能力，本公司的客户已经遍及145个国家。
10.
Helicopter is hard to hover precisely for its bad stability . ordinarily , it is improved by flight control system , such like rotorcraft unmanned aerial vehicles which use bell bar or bell - hiller stabilizer bar . bell stabilizer bar , fixed across with teetering main rotor , consists of a bar and masses at two ends 贝尔稳定杆由一杆与两质量块组成,它与贝尔直升机的跷跷板旋翼垂直交叉放置,这种旋翼装置有助于加大角速度阻尼,改善贝尔直升机的稳定性,但同时也降低了操作性。
