桨叶

A controllable lifting rotary wing for an aircraft wherein each rotor blade is of torsionally flexible construction and control may be accomplished by twisting the rotor blades.

可控解除或旋转翼，为一飞机，其中每个转子叶片是扭矩灵活的建设和控制，可通过歪曲旋翼桨叶。

Several firms are building new factories: Vestas has just announced its first American plant, which will make blades in Colorado.

几个公司正在建造新工厂：维斯塔斯公司刚宣布了他们的第一个美国工厂，等到建成时，它会在科罗拉多州生产桨叶。

It is one of the efficient approaches that the air-film is accreted on blade surface of operative marine propeller for improving cavitation characteristics.

在船用螺旋桨桨叶表面充气以形成气膜是改善其空泡特性的有效方法之一。

Aiming at the disadvantages of the present machining method of the propeller,such as lower machining precision and efficiency,needing more time of clamping and limited machining scope,a new machining method — the second order osculating machining method has been presented and used in the manufacture of the propeller ...

针对目前螺旋桨加工中存在的加工精度和效率较低、需多次装夹、适用范围有限等缺点，在分析螺旋桨桨叶曲面特征的基础上，提出了基于圆柱形刀具二阶密切加工螺旋桨的方法。

Aiming at the disadvantages of the present machining method of the propeller, such as lower machining precision and efficiency, needing more time of clamping and limited machining scope, a new machining method the second-order osculating machining method has been presented and used in the manufacture of the propeller by analyzing the curve surface characteristics of the marine propeller blade.

针对目前螺旋桨加工中存在的加工精度和效率较低、需多次装夹、适用范围有限等缺点，在分析螺旋桨桨叶曲面特征的基础上，提出了基于圆柱形刀具二阶密切加工螺旋桨的方法。

In the fifth chapter, the stall regulated wind turbines are simulated on the zero-yaw and yawed configurations. The former are solved under non-inertial rotating coordinate system and the latter under inertial coordinate system.

第五章为风轮叶片的流场数值模拟，对失速限制型风轮叶片(NREL Phase-Ⅵ)在轴流和偏航状态下的流场进行了数值模拟，其中轴流状态采用在旋转坐标系下进行求解的方法，研究了风轮叶片在经历失速前后的流场变化、桨叶载荷分布，对所产生的扭矩、以及附加的在挥舞和摆振方向的力矩进行了分析。

"By its rotation in water or air, the propeller produces thrust on the blades, which gives forward motion to the vehicle."

当它在水中或空气中旋转时就对桨叶产生推力，然后推动交通工具前进。

"By its rotation in water or air, the propeller produces thrust on the blade s, which gives forward motion to the vehicle."

当它在水中或空气中旋转时就对桨叶产生推力，然后推动交通工具前进。

Through performing all kinds of anti-corrosion and anti- abrasion experiments,the ways of surface oxidation process and anti-corrosion coat materials of air propeller are selected in this article according to self-protection property of the air propeller used on certain ship.

根据空气螺旋桨在某船上的自身防护特点，通过耐腐蚀、耐磨蚀等各种实验，对空气螺旋桨桨叶表面氧化处理工艺和表面防腐涂层材料进行了筛选。

The secondary gearbox is provided with a free-wheeling clutch, a pinion gear and bevel gears for transmitting the rotary movement of the engine to the counter rotating coaxial vertical shafts each carrying two rotor blades of airfoil cross section fixed by pitch bearing on teetering plates and teetering hinges to form horizontal rotors.

二级变速箱是提供一个自由转运离合器的齿轮和小齿轮锥齿轮传递旋转运动的引擎反旋转同轴竖井每个载有两名旋翼桨叶翼型截面固定音高关系摇摇欲坠板摇摇欲坠铰链，形成横向转子。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。