查询词典 racket wheel

But that's not true for my case. I love tennis for the feeling of running on the court with my racket, for the sounds of the ball bouncing against my racket, and for the happiness from within after a good shot.

但对于我来说不是这样的，我喜欢网球，是喜欢那种拿着拍子在球场上奔跑的感觉，喜欢听到球与拍子撞击的刹那发出的声响，喜欢在打出一个好球后内心由衷的快乐。

The first is not the same as the weight,followed due to different shape,if the words to use squash squash rackets tennis beat easily broken,however,unnecessary losses,If playing squash with the tennis racket,you will find it hard because the tennis racket squash are weight rackets too much.

首先是重量纷歧样，其次就是造型纷歧样，倘若要用壁球打球工具打网球的话壁球打球工具就很容易攀折，然而造成不须要的损失，若用网球打球工具打壁球的话，你会感应费力，由于网球打球工具比壁球打球工具重太多了。

Early racket preparation 早些引拍 One of the reasons the pros do this is because it is more natural to run to meet the ball with the racket in front of them rather then behind.

专业选手这样做的原因之一是他们的引拍到位的点会靠前，这样做比靠后的点在迎击球时更加自然。

Analyzing the honing principle of spiral bevel gears based on crossing-axis transmission, the mathematical model of the relative sliding speed of the contact point between honing wheel and gear is achieved. It is determined that the pitch cone of honing wheel depends on the number of teeth in the honing wheel and the angle between the common normal of pitch cones and the plane parallel to both gear and honing wheel axes.

分析了基于交错轴传动的珩齿原理，导出珩磨轮与被珩齿轮在啮合点处的相对滑动速度的数学模型，根据该数学模型可以判定珩磨轮的节锥面是由珩磨轮齿数、公法线和与珩磨轮轴线平行的平面夹角所确定。

The complete model of locomotive and vehicle and the exact motion equations of wheel-set are established, in which, three-dimension wheel/rail contact geometry is taken into account and the Kalker's creep theory is employed to analyze the effects of the contact region of wheel/rail. An iterative procedure of solving wheel/rail creep force is proposed to improve the existed calculating method. Finally, the motion equations of vehicle with 23 DOFs are derived using the D'Alembert principle.

建立了较完善的机车车辆分析模型和较精确的轮对运动方程：考虑三维非线性轮轨接触几何关系，用Kalker蠕滑理论研究了轮轨接触区的蠕滑效应，建立了较为详细的轮对运动方程，提出用迭代法来求解轮轨蠕滑力从而对现有蠕滑力求解方法进行了改进，并采用D′Alembert原理推导了23个自由度车辆的运动方程。

From the mechanics analysis, the relationships between the configure parameters (such as the wheel parameters and the position of mass center) and the mobility performane indexes (such as the wheel sinkage, motion resistance and drawbar pull) are obtained. The design principles of the wheel parameters, position of mass center and the wheel space are given. It is demonstrated that the mass center is crucial to the mobility performance of the lunar rover.

通过对移动性能的分析，得到了构型参数和地形参数与下陷量、运动阻力、牵引力等性能参数间的关系曲线，给出了月球车车轮、质心位置和轮距等构型参数的设计原则，论证了质心对于月球车移动性能的重要性。

Motorcycle to have a good and smooth movement of traffic through, it is necessary to do a good job in a motorcycle parts and front-wheel rear-wheel drive in the wheel rim, wheel and tire design.

要使摩托车有良好的运动平稳性和行驶通过性，就要做好摩托车传动部分和前后轮中轮辋、轮毂和轮胎的设计。

The inventive idler wheel comprises: a lower part to generate suction force; an outer wheel contacting the ground when moving machine body; an inner wheel embedded into the inner side of outer wheel to support the weight of machine body; and a rotational shaft inserted and mounted at the centers of inner and outer wheels with the rotation function.

本发明的吸尘器滚轮包含：形成吸力的机体下部；机体移动时与地面接触的外轮；嵌入到外轮的内侧，支撑机体重量的内轮；插入并固定在内轮及外轮的中心，起到转动作用的旋转轴。

The fibre reinforced resin bond grinding wheel for cutting off is widely used. The traditional presses used for manufacture this type of grinding wheel in most factories at present have problems, such as laboriousness for workers, low efficiency of production, and dependance of products quality on operators' skillnes. This paper introduced a new type of press for shaping grinding wheel with six stations designed by the authors, considering the shortcoming of presses in use and the operating characteristics in manufacture of this type of grinding wheel.

概述纤维增强树脂薄片砂轮是一种低值易耗产品，在树脂砂轮中占有很大的比重，主要用于切割各种规格的型钢，在国内外都有较大的市场，随着市场竞争的加剧，对产品质量和生产效率提出了更高的要求，各生产厂家只有通过降低生产成本提高产量来挤占市场。

A typical wheel optimization design was exploringly studied, and the results show that through the wheel structural optimization design, the weight of the wheel may be reduced further. The benefits are material saving and improving of the vehicles'driving quality. It has vital significance to reduce the cost of the wheel.

对某一类型车轮的优化设计进行了探索性的研究，研究结果表明，通过对车轮结构的优化设计，可以进一步降低车轮的重量，在保证车轮性能的前提下充分地节省材料并改善车辆行驶性能，对降低车轮制造的成本具有重要的意义。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。