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在实际道路上测量汽车速度、行驶距离和对汽车加速性、制动性和滑行性能等进行检验时,一般均采用“五轮仪”,它较为坚固,价格适中,在低、中速范围能较好地满足测试要求。“五轮仪”的基本原理是先测得第五轮的车轮转速,然后根
In the actual road measurement of car speed, driving distance and the car acceleration, braking and taxiing performance test, the general are used “five rounds”, it is more robust, affordable, in the low, medium speed range Better meet the test requirements. The basic principle of the “five-wheel meter” is to measure the wheel speed of the fifth wheel first and then the root