简单里程统计，最长，最短路线。时间比较。最长最短时间，平均值等。-Simple mileage statistics, the longest, shortest route. Time. Longest shortest time, average, etc..

摩托车速度表和里程表，里程表掉电保持。速度0.0-99.9里程0.0-999.0-Motorcycle speedometer and odometer, odometer retentive.