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案例1 症状:一台悬挂中型联合收割机完成小麦收割作业的拖拉机,刚卸下收割机转而进行耕地作业后不久,便出现发动机功率明显下降,带负荷时严重冒黑烟现象。
Case 1 Symptoms: A tractor with a mid-size combine harvester that completed a wheat harvesting operation had a significant reduction in engine power and severe black smoke with loads shortly after the harvester was removed to farm work.