Disk brakes, used for years for front wheel application, are fast replacing drum brake on the rear wheels of modern cars.
在汽车前轮上应用多年的盘式制动器正快速的取代鼓式制动器应用于更新式的汽车上。
2
So stop the wheel: I can't make out how elaborate the mechanism is, but motionless disk displays only three slots: function, decorative and symbol.
所以当轮盘停止转动：我不知道机械方面有多精密，但不动的转盘只有三个印记：功能、装饰、和符号。
3
On this method, disk roller's contact stress is obtained and the intensity is verficated. It is difficult to calculate accurately the wheel pressure distributing.