江苏省盐城市在1985年秋播前,对8个县、区,9个乡、镇的539台东风-12型手扶拖拉机进行了技术状态检测。检测前平均每台机功率8.46马力,每马力小时油耗250.47克;经调整、小修服务后,平均每台机增加功率1.6马力,每马力小时降低油耗25.35克。以增加的功率和降低的油耗来推算,若给全市农 Yancheng City, Jiangsu Province before the autumn of 1985 broadcast on the 8 counties, districts, 9 townships and towns of 539 Dongfeng -12-type tractor carried out a technical state test. Before testing, the average power per machine was 8.46 horsepower and 250.47 g per hour per horsepower. After adjustment and minor repairs, the average power per unit increased by 1.6 hp and the fuel consumption per horsepower hour decreased by 25.35 g. To increase the power and reduce fuel consumption to projections, if the city’s agriculture