2016中职教材汽车专业英语（高教版 黄立新主编）课件：第三章 底盘.pptVIP

译文及评析 Recirculating-ball steering Recirculating-ball steering is used on many trucks and SUVs today. The linkage that turns the wheels is slightly different than on a rack-and-pinion system. linkage n. 联合, 连锁, 结合, 联动。 循环球式转向器被广泛用于卡车和旅行多用途车。其转向结构与齿轮齿条式稍有不同。 * 转向力 steering force 转向传动比 steering gear ratio (steering ratio0 恒定转向传动比 constant ratio steering 可变转向传动比 variable ratio steering 转向系角传动比 steering system angle ratio 转向器角传动比 steering gear angle ratio * 转向传动机构角传动比 steering linkage angle ratio 转向器传动效率 steerign gear efficiency 正效率 forward efficiency 逆效率 reverse efficiency 转向器扭转刚度 torsional stiffness * 作业 These gears turn the rear wheels. They let each wheel turn at its own speed when it is necessary. If the car is turning a corner, the outside wheel has to turn faster than the inside one, which acts as a sort of pivot. Other gears connect the steering wheel to the front wheels which steer the car while the rear wheels push. 这些齿轮使得后轮运转。必要时，他们让每个车轮以它自己的速度转动。如果汽车转弯，则外面的车轮必须转动得比里面的快，此时差速器充当为支点。 汽车采用后轮驱动方式时，转向器使方向盘控制前轮转向。 * 作业 P52 Ⅱ.Translate the following expressions(词组翻译) Ⅲ. Translate the following sentences into Chinese(将下列句子译成中文) * 背景知识 生词 译文及评析 3.6 Why You Need a Differential 作业 * 背景知识 汽车差速器是一个差速传动机构，用来保证各驱动轮在各种运动条件下的动力传递，避免轮胎与地面间打滑。 * 生词 differential n. 差速器 speed n. 速度 equal a. 相等的 divide v. 分成, 除以 locate v. 位于 torque n. 力矩 driveshaft n. 驱动轴 transmission n. 转动 * 生词 significant a. 显著的, 大的 effect n. 效果 utilize v. 使用 traction n. 附着力 split v. 分开 spin v. 转动 all-wheel-drive n. 全驱 aim v. 目的 reduction n. 减速 * Car wheels spin at different speeds, especially when turning. You can see that each wheel travels a different distance through the turn, and that the inside wheels travel a shorter distance than the outside wheels. through the turn意思是“转弯时”，放在句首。 过了一会，小男孩不哭了，睁开眼睛，用询问的目光看着越南护士。 汽车的车轮其各自的转速是不同的，尤其是在转弯的时候。我们可以了解到，转弯时，车轮碾过的距离是不同的。内侧车轮经过的距离比外侧车轮经过的距离要短。 译文及评析 * 译文及评析 Since speed is equal to the distance traveled divided by the time it takes