机械工程概论双语(上册).doc

1. The fundamental principle involved is the use of compressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneous on the wheels of all the cars in the train. The compressed air is carried through a strong hose from car to car with couplings between cars; its release to all the separate block brake units, at the same time, is controlled by the engineer. (Braking Systems) 相关的基本原理是使用压缩气体，通过气缸内的活塞将闸块压在车轮起作用。列车的所有车厢上的车轮同时动作。压缩气体通过一个坚固的管道在由联轴器连接的车厢之间传输；工程师控制所有独立闸块单元的同时释放。 2. When the brake pedal of an automobile is depressed, a force is applied to a piston in a master cylinder. The piston forces hydraulic fluid through metal tubing into a cylinder in each wheel where the fluid’s pressure moves two pistons that press the brake shoes against the drum. (Braking Systems) 当踩下汽车刹车的踏板，施加一个力在主汽缸中的活塞上。活塞驱动液压流体通过金属管道进入每个车轮气缸，在那里液压移动两个活塞将闸片压向轮圈。 3. Machinery ontology including mechanical rack, mechanical connections and mechanical transmission, which is the basis of mechanical-electrical integration, plays a role in supporting the other functional units of the system and transmitting motion and power. Compared to purely mechanical products, the performance and functionality of integration technology in electrical and mechanical systems have been improved a lot, which requires mechanical ontology to adapt its new status in mechanical structure, materials, processing technology, as well as the areas of geometry. Accordingly, the new ontology is with high efficient, multi-functional, reliable and energy-saving, small, light-weighted and aesthetically pleasing characteristics. (Mechatronics System) 机械体包括机架、机械联接和机械传动，它是机电一体化的基础，作用是支撑系统其他功能单元，传递运动和动力。和纯机械产品相比，在机电系统中一体化技术的性能和功能大幅提高，它要求机械体适应几何形态、加工技术、材料结构的新环境。相应的，新的一体化具有高效、多功能、可靠、节能、小、轻和美学的令人赏心悦目的特征。 4. Detecting sensor detecting sensor part includes a variety of sensors and signal detection circuit, and its function is to detect the process of mechatronic systems in