求翻译：基于汽车的动力性及燃油经济性，结合变速器主要参数确定了变速器档数，计算了主减速比、各档传动比及中心距是什么意思？

Vehicle power and fuel economy, combined with the transmission main parameters to determine the transmission gears to calculate the main reduction gear ratio and stall the transmission ratio and center distance

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Based on the automobile power and the fuel oil efficiency, unified the transmission gearbox main parameter to determine the transmission gearbox files number, has calculated the host reduction gear ratio, various grade of transmission when center distance

Based on automobile power performance and fuel economy, combined with the transmission main parameters to determine the number of transmissions, the primary reduction ratio is calculated, the gear transmission ratio and Center distance

正在翻译，请等待...