由于零件更少，因此电动汽车的保养更加便宜，出现机械故障的概率也降低了。
Having fewer parts makes the electric car cheaper to maintain and less likely to have mechanical problems.
平衡配置不分主备的双前置机的使用，减轻了前置机的负担，降低了前置机故障时下发报文丢失的概率；
The balanced dual FEP configuration reduces the loads of FEP and the probability of downward message loss, which occurs when one FEP is in failure.
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