定时加热功能：该功能可以对设备进行预热，节约开机等待时间。
Timing heating function: this function can be preheated to equipment, saves the boot wait time.
这引擎在起动前应预热多长时间？
冷天时，排放控制系统需要花费较长时间预热，才能全效工作。
Emission control systems take longer to warm up and become fully operational in cold weather.
定时加热功能：该功能可以对设备进行预热，节约开机等待时间。
Timing heating function: this function can preheat the equipment, and save the boot time.
定时加热功能：该功能可以对设备进行预热，节约开机等待时间。
Timing heating function: this function can preheat the equipment, and save the boot time.
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