片语

variable-pitch inducer变螺距诱导轮

vane variable-pitch叶片变螺距

controllable pitch可变螺距；可调桨

variable-pitch grid变节距栅极

variable screw pitch变螺距

variable-pitch fan[机]

variable-pitch turbine变距水轮机

variable thread pitch变螺距

variable-pitch auger变螺距螺旋

英汉例句

• the analysis of a helical surface with a variable pitch is made.

  本文推导了变螺距圆柱螺线的参数方程，对变螺距螺旋面进行了解析分析。

• it is difficult to machine the variable pitch of screw part on the cmc lathe without variable pitch cutting faction.

  对于只具备普通螺纹切削功能的数控车床，一般来说不能加工变螺距的螺纹。

• with the theory of kinematics, the universal model of changed angle and variable pitch spiral groove on any turning surface is researched.

  本文应用运动学理论，研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。

• the good or bad of variable pitch system affects wind generating set efficiency, safe operation and stable operation to a large extent.

  变桨距系统的好坏很大程度地影响风力发电机组的效率、安全运行与稳定运行。

• in this paper, the mathematical model of dfig and variable pitch system is established.

  本文分别分析了双馈发电机和变桨距系统的数学模型。

• therefore, to carry out research on the variable pitch control system of wind turbine and its drive system has important significance.

  因此，开展对风力机变桨距控制系统及其驱动系统的研究具有重要的意义。

• there is a variable pitch of the joystick to change the tilt rotor plane in order to achieve control of flight direction.

  还有一根可变动桨距的操纵桿来改变旋翼面的倾斜度，以实现飞行方向控制。

• once the program is loaded, only a few parameters are given, the development drawings of variable pitch helical blade will be obtained.

  该程序一经调用，只要给出几个相关的参数，即可绘出变螺距螺旋面展开图。

• the variable pitch screw driving mechanism could be designed according to the requirements of the rapier motion.

  从分析实例可见，根据给定条件设计的变导程螺旋传动能满足所提出的运动规律要求。

• this paper introduces a design method of variable pitch screw, this methed make use of multinomial, bring out the boundary conditions which the design need and the operating range of the methed.

  本文介绍了一种变螺距螺桿的设计方法，该方法采用多项式，并提出了设计所需的边界条件和这种方法的使用范围。

• in this paper, the research for the control system begin with studying controller of variable pitch control system.

  本文以变桨距控制系统中控制器的研究为切入点，对控制系统展开了研究。

• in view of this, a variable pitch valve spring is designed to eliminate the axial shifting and radial drifting of the valve disk and improve the service life of the valve.

  鑒于此，笔者试图设计泵阀的变螺距弹簧，以消除阀盘的纵向振谐窜动和径向失稳漂移，提高泵阀工作寿命。

• according to the characteristic of the carrying screw, four-segments variable pitch helix is putted forward, and its mathematical model is given.

  根据分件供送螺桿的运动特点，提出了一种四段组合式变螺距螺旋线的形式，并给出了其数学模型。

• compression cancellous bone screw with both ends thread is a variable pitch screw designed to provide rigid 'fixation of cancellous bone fracture.

  双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距，无螺帽。

• a simplified model of variable speed variable pitch wind turbine is established.

  建立了变速变桨距风力发电机组的简化模型。

• it has firstly introduced advanced technique of producing screws with variable pitch and depth, so that the material can be more softly sheared and cut.

  率先引入国际最先进变螺距，变深度螺桿设计技术，使物流在螺桿中剪切、压缩更柔和，更接近实际需要。

• compared with developed countries, china still has more gaps in large-scale wind turbine, variable pitch control and variable speed constant frequency wind power.

  与发达国家相比，我国在风力机的大型化、变桨距控制、变速恒频等先进风电技术的研究方面还存在较大的差距。

• in order to meet the constant power control requirements of wind turbines, the wind turbine model was linearized at the operation points, thus variable pitch pid control of wind turbines is achieved.

  为了满足风力发电机的恒功率控制要求，对其模型在运行工作点处进行了线性化处理，从而实现了风力发电机变桨距的pid控制。

• programming by the plane curve unwrapped from the helix curve and cutting layer by layer, we created the variable pitch screw on the 3.5 axis nc milling.

  文章基于3.5轴数控铣床，利用螺旋线展开的平面曲线编程，分层切削，加工出变螺距螺纹；

• mw variable speed constant frequency wind turbine from shenyang university of technology is a variable pitch wind turbine, it can change pitch to adjust power above rated wind speed.

  由沈阳工业大学研制的mw级变速恒频风电机组属于变桨距型机组，它在额定风速以上进行变桨距调功控制。

• first, traditional pid variable variable pitch control system and conventional fuzzy variable pitch control system are established.

  本文首先建立了pid变桨距控制系统和常规的模糊变桨距控制系统。

• with the stand-alone wind turbine capacity of large-scale, variable pitch control, a kind of wind power generation technology , is being more and more attention for its efficiency and practicality.

  随着风力发电机组单机容量的大型化，变桨距控制风力发电技术因其高效性和实用性正受到越来越多的重视。

• first, wind turbine aerodynamics and variable pitch control process was discussed to provide theoretical studying basis for studying of the system design and control strategy.

  首先对风力机空气动力学和变桨距控制过程进行了探讨，为系统的设计及控制策略的研究提供理论基础。

• the main task of the paper is control a major variable pitch wind turbine generator with model free adaptive controller so as to make it run well.

  本论文研究的是用无模型自适应控制器实现大型变桨距风力发电机的电控系统。

• this provides a theoretical basis for latter variable pitch design of hardware and software.

  这为后面的变桨距硬件和软件设计提供了理论依据。

• cnc lathe; variable pitch screw; nc program; on the cutting point; graphic method;

  数控车；变螺距螺桿；nc程序；起刀点；图解法；