传动比

The differential model for the design of eccentric involutes gears transmission is presented.

分析了偏心率与最大传动比的关系，对一些设计和分析参数进行了多项式拟合。

Its function is:①Changing gear ratio,expanding the torque of the driving wheel and the range of the rotational speed,to adapt the travel condition which frequently changes, like start, acceleration, climbing and so on, simultaneously causes the engine to work under the advantageous operating mode;②Under the premise of the invariable rotation, enables the automobile to travel back;③Using neutral, severances the power transmission, to make the engine start, idle, and is advantageous for the engine to shift gears or to carry on the dynamic output.

它功用是：①改变传动比，扩大驱动轮转矩和转速的变化范围，以适应经常变化的行驶条件，如起步、加速、上坡等，同时使发动机在有利的工况下工作；②在发动机旋转方向不变的前提下，使汽车能倒退行驶；③利用空档，中断动力传递，以使发动机能够起动、怠速，并便于发动机换档或进行动力输出。

The locus equation of the roulette of the simple fixed axis gear train was derived by transforming coordinates first, and some typical figures were demonstrated by computer. The relationships among characteristics and forms of the roulettes and the transmission ratios, mechanism parameter and the original phase angles were investigated.

首先应用坐标变换的方法推导出了简单定轴轮系的旋轮线的方程，并利用计算机画出了一些典型图形，研究了旋轮线的性质、形状与传动比、尺度参数和初始角的关系。

By theoretic analysis, we have studied method that defines engaging parameter and the real driving ratio and contact area of point contact Archimede s worm gearing .

本文通过理论分析阐明了点接触阿基米德蜗杆传动啮合参数的确定以及实际传动比和接触区分析的方法。

The speed ratio is the ratio of the shaft transmission to the first digit wheel transmission.

注：速比配置数是出轴与头位字轮传动比。

Other goodies include a new limited slip differential, a final drive ratio of 3.71:1, and an alloy torque tube with a lightweight carbon-fiber propeller shaft.

其他的物品，包括一个新的限滑差速器，最终传动比的3.71：1 ，和扭矩合金管轻质碳纤维传动轴。

These problems were all solution under the help of my teacher and classmates, because the entire transmission system requests the transmission quite is big, therefore used the structure to be compact, velocity ratio big worm gear worm drive; regarding two kind of different working speeds, used has dialed forks with the twin gear combination realizes between the different speed transformation; regarding the screw tap break, the decayed teeth phenomenon solution is in attacks in the refuse silk to establish the friction disk transmission, may solve this problem well using the friction disk transmission characteristic, now the Dragon Gate type taper has been basic designed, its performance has been waiting for the production practice the confirmation.

这些问题在老师和同学们的帮助下都已基本解决，由于整个传动机构所要求的传动比较大，故采用了结构紧凑，传动比大的蜗轮蜗杆传动；对于两种不同的工作速度，采用了拨叉和双联齿轮的组合来实现不同速度之间的转换；对于丝锥断裂，烂牙现象的解决办法是在攻丝头中设置摩擦片传动，利用摩擦片传动的特性就可以很好地解决这个问题，现在龙门式攻丝机已基本设计出来，其性能正在等待生产实践的验证。

There are six major parameters impacting vehicle handling and stability performance: the cg location, the rigidity of tyre side list, the rigidity of steering system, the steering system transmission ratio, the rear axle roll steering coefficient and the entire vehicle circling the vertical axis the rotating inertia.

对操稳性影响较大的主要有6个参数：重心位置、车轮侧偏刚度、转向系刚度、转向系传动比、后轴侧倾转向系数及整车绕垂直轴的转动惯量。

Fixed axis wheel system can achieve a large transmission ratio, large-axis pitch, speed or change direction, it is widely used.

定轴轮系可以实现大的传动比、大的轴间距、变速或变向、故应用广泛。

A rotary two-stroke engine including a multi-cylinder block rotatably mounted on two main bearings within an engine housing, a crankshaft journalled for rotation within said main bearings, indirectly geared at a ratio of 2:1 to said cylinder block and piston members connected to said crankshaft which induce gas through ports in said cylinders via side entry tracts in said engine housing, being sealed by rotating seal rings.

一种旋转二冲程发动机，包括一个多缸机体、一个曲轴和活塞组件，其中该多缸机体可旋转地安装在发动机机体中的两个主轴承之中，曲轴支承在所说主轴承中旋转，并以2∶1的传动比间接地与所说汽缸体啮合，而活塞组件与所说曲轴连接，活塞从所说汽缸中的气口处经所说发动机上的所说进气通道将燃气吸入，该通道被旋转的密封环密封。

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