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利用你已经拥有的设备,不必借助烟度计就可以诊断出曲轴箱的漏气量以及曲轴箱强制通风(PCV)流量过低或过多这类故障。
Using the equipment you already own, you can diagnose crankcase leaks and low or excessive crankcase ventilation (PCV) failures without having to rely on a smoke meter.