noun🔗Share动力总成，动力系统。 The group of components in a vehicle that generate power and deliver it to the road surface, water, or air."The mechanic inspected the car's powertrain to diagnose the cause of the reduced acceleration. "为了诊断加速减缓的原因，技工检查了这辆车的动力总成。vehiclemachinetechnologytechnicalpartsystemChat with AIVocabulary GamePractice Reading
