变速

This dissertation is engaged in increasing the efficiency of the variable speed variable pitch WPGS. The technical and operation characteristics of the system are analyzed and the control schemes are researched in theory and simulation. And then, the emulation of WPGS in lab is also explored in order to verify the affectivity of the control scheme.

本文以提高风力机的风能捕获效率为目的，以变速变桨距风电机组为研究对象，分析了其技术特点和运行特性，对其变速控制策略进行了深入的理论研究和仿真分析，并对其实验验证手段进行了探索。

The dynamic characteristics of the rotor running at a constant angular speed or constant acceleration/deceleration were studied.

飞行器的速度变化将会造成等速转子的稳定振幅或等变速转子变速初期振幅的不同。

The varying velocity mapping result was compared to simple time-depth relationship transformation result, showing that the varying velocity mapping technique can effectively improve the accuracy of structure maps and an anticlinal trap was discovered in the south of the working area.

对研究区变速成图结果与简单的时－深关系转换结果进行了对比，可以看出变速成图方法有效提高了构造图的精度，在工区的正南边发现一个新的背斜圈闭。

To resolve this problem, we'll reel outwards drive across the bridge to the intermediate surface of variable-speed drive wheel with two wheels of processed into 30 °, the increase in friction with Groove, even if such a belt would not have had; the diameter of 6 mm, spin out to o-rubber belt changed out with Burr corn-cob o-shaped belt; crossing the bridge to another variable-speed drive belt pulley to roll out of the book, two rounds of the belt pulley turned into 1/2 inch, using chain drive sprocket, and fixed machinewe side wall to cross the bridge wheel seat side wall plate processing growth holes for adjust tension pulley and sprockets.

为解决这个问题，我们将分切机朝外传动面传动到中间过桥变速皮带轮的两轮加工成30°的带槽，增加摩擦力，这样皮带即使松了也不会打滑；直径6mm的O型橡胶皮带改成外面带毛刺的聚氨酯O型皮带；过桥变速皮带轮的另一个传动到出书辊的皮带轮，两轮改成1/2英寸的链轮，采用链条传动，再将固定在机器侧墙板的过桥轮座侧墙板孔加工成长孔，可任意调整皮带轮与链轮的松紧。

The front derailleur can be connected to the shift cable such that the shift cable is pulled upwardly or downwardly relative to the bicycle frame.

前拨链器可连接在变速传动索上，使得能够相对自行车车架向上或向下拉动变速传动索。

It can change the ratio of the transmission system by adjusting the pushing force of the pulley.By analyzing the structure characteristics and force relations,the design method of an important parameter of the CVT hydraulic system and the rate of transmission ratio,are put forward by simulating to the emblematical driving models.The structure parameters of the hydraulic ...

在分析了金属带式无级变速器的结构特征和力学关系的基础上，通过对汽车典型行驶工况的仿真分析，提出了无级自动变速液压控制系统关键参数—速比变化率的设计方法，完成了液压系统的结构参数设计，并进行了仿真验证，从而为无级自动变速汽车的研制开发奠定了基础。

And the amount of calculation load is less than the linear acceleration shift control method and the method which is based on the exponential rule to change speed.

而且它的计算量比线性加速度变速和基于指数规律加速度的变速控制小得多。

The sporty gearchange is emphasised by the aluminium insert, short throw gearlever and black leather gaiter.

运动型变速是强调由铝插入，短投变速杆和黑色皮革绑腿。

This system is not a true CVT, having a fixed gear ratio, but behaves very similarly to a true CVT.

这个制度并不是真正的无级变速，有固定的齿轮比例，而且表现非常类似于一个真正的无级变速。

The control strategy based on hyperbolic function is proposed and relative mathematical model is built.

为此讨论了车辆变速行为的一般规律，提出基于双曲函数的车辆变速控制策略，建立了相应的数学模型，并针对实例进行了具体分析。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷