odometer

The odometer shows now 140 miles per hour..里程表显示现在的时速为140英里。

Differential calculus doesn’t need to just be an equation, but the odometer and speedometer on a car..微积分并不只会在等式中出现，它还会在汽车的里程表和速度表中应用。

For instance, on page 87 he explains the differences between pure boundary values and typical values with a car odometer/speedometer analogy..例如，在第87页中，他通过汽车里的里程表和里程计来比喻单纯的临界值和典型值之间的不同。

（汽车的）里程表，[车辆] 里程计英释中释nan instrument in a vehicle that shows how many miles or kilometres the vehicle has travelled