滚动

Determine (1)the angle acceleration of the tub wheel,(2) the tensile force of the rope,(3) the reaction forces at point O on the bearing,(4)the friction force between the cylinder and the inclined plane (neglecting the rolling friction).

在图示机构中，沿斜面向上作纯滚动的圆柱体和鼓轮O均为均质物体，各重为P和Q，半径均为R，绳子不可伸长，其质量不计，斜面倾角，如在鼓轮上作用一常力偶矩M。

Our solid tyre is especial in small rolling resistance,effectual to economize on fuel,not need to safeguard and maintain in the course of using,longe-lived,wear-resisting,bear the thorn to pitch,flexble to turn to,the vehicle openates steadily.lt overcomes the shortcomings such as pneumatic tyre inflating frequently,vehicle stability bad and unable bear the thorn to pitch.it is used to the mechanical vehicle of industey forkift truck,tractor,platform trailer ect.

该产品滚动阻力小，节油效果好，在使用过程中无需维护保养，使用寿命长，耐磨耐刺扎，转向灵活，车辆运行平稳。克服了充气轮胎需要经常充气，车辆稳定性差，不耐刺扎等缺点。主要是工业机械类车辆用胎（叉车、牵引车、平板拖车等），是冷冻库物流库、立体库，自动化流水线车间、石材加工厂、机械加工厂等特殊场地车辆的首选产品。

Benedictine University is situated on a rolling, tree-covered 108-acre campus of 10 major buildings with air-conditioned classrooms and modern, well-equipped laboratories.

本笃大学位于滚动，树覆盖108英亩，由10名校园空气中的主要建筑物空调教室和现代化，装备精良的实验室。

Interest Payment: Interest on book-entry bond is paid annually; real yield is higher than coupon rate. Certificate Treasury has principal and interest repaid based on coupon rate at maturity.

付息方式：记账式每年付息一次，如果滚动投资，实际收益率比票面利率高；凭证式到期按照票面利率还本付息。

A coasting performance test is simulated on a chassis dynamometer, the transmission resistance, rolling resistance of wheels and their speed factors are measured.

利用底盘测功机模拟道路滑行试验，测定出汽车的传动系阻力、轮胎滚动阻力及它们的速度影响系数。

With the development arise some problems of the wheel/rail performance, the requirement of the train traction for the adhesion of wheel/rail will become more and more strict, and rail corrugation of wheel/rail, rolling contact fatigue and derailment will become more and more serious. The solution to the problems will have direct effects on the railway development.

当前世界铁路正朝着高速和重载的方向发展，随之而来的是列车牵引对轮轨粘着的要求越来越高，而轮轨的波浪形磨耗、滚动接触疲劳、脱轨等轮轨关系问题越来越严重，其解决与否直接影响到铁路的快速发展。

The development tendency of the railway construction in the world today is serving high speed trains and csirrying heavy load. With the development arise some problems of the wheel/rail performance, the requirement of the train traction for the adhesion of wheel/rail will become more and more strict, and rail corrugation of wheel/rail, rolling contact fatigue and derailment will become more and more serious. The solution to the problems will have direct effects on the railway development.

当前世界铁路正朝着高速和重载的方向发展，随之而来的是列车牵引对轮轨粘着的要求越来越高，而轮轨的波浪形磨耗、滚动接触疲劳、脱轨等轮轨关系问题越来越严重，其解决与否直接影响到铁路的快速发展。

Because on chain link''s roller and the track are by the rolling contact, the friction drag is small, the power loses lowly, and may the load bearing heavy load capacity.

由于链条上的滚子与轨道是以滚动接触，摩擦阻力小，动力损耗低且可承载较重的荷重。

From the computer keyboard, phone keypad, MP3 players, home appliances and even a simple TV remote so the above button or buttons to adjust the volume slider, roller and track plates [LU1] The above and other more advanced features click and scroll, the output position (that is, the user's input or manipulation of the results of action [LU2]) with the user's input location is different.

从计算机键盘、手机键盘、MP3播放器、家用电器甚至电视遥控器等上面的简单按钮或按键，到音量调节滑条、滚轮和跟踪板[LU1]等上面更高级的单击和滚动特性，输出位置也就是用户的输入或操控动作的结果[LU2]）与用户的输入位置是截然不同的。

When a round object rolls along a straight line, a track on the round edge is called roulette or cycloid.

当一个圆沿着一条直线滚动时，圆边上一点的轨迹叫做旋轮线或摆线。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。