问题:拖拉机在(),允许使用差速锁。A、转向时B、直线行驶时C、一侧驱动陷入泥坑时...
Saturday, March 4, 2023
Sunday, January 22, 2023
Saturday, September 17, 2022
Monday, September 12, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:何谓气门叠开?增压发动机为何可以有较大的气门叠开角?...
Sunday, September 11, 2022
问题:将柴油低压变成高压,并按柴油机工作要求,定时、定量地将柴油输送到喷油器的是()A、喷油器B、化油器C、输油泵D、喷油泵...
Tuesday, February 6, 2024
Monday, June 12, 2023
问题:组合式变速箱,它由一个两轴式或三轴式变速箱同一个()组合而成。...
Saturday, September 17, 2022
问题:铁牛—55型拖拉机双作用离合器工作特点是:当踏下踏板第二行程时,()。A、主离合器分离,副离合器结合B、主、副离合器都分离C、主离合器结合,副离合器分离...
Sunday, February 4, 2024
Saturday, September 17, 2022
Monday, November 27, 2023
问题:牵引犁耕地作业时如横拉杆位置偏低,将会使犁的()。...
Saturday, September 17, 2022
Saturday, May 6, 2023
Saturday, September 17, 2022
Tuesday, June 20, 2023
问题:拖拉机试运转后()的清洗。A、必需进行柴油、机油和空气滤清器B、必需进行柴油和机油滤清器C、只需进行所有机油滤清器D、不必进行滤清器...
Tuesday, April 4, 2023
Friday, October 28, 2022
问题:耕地前的田间准备主要是对被耕地块的()进行调查,确定最佳作业时间、作业方法和行走路线。A、道路、作物情况B、道路、地表情况、土壤墒度C、土壤墒度D、道路、管渠、地表情况...
Wednesday, October 25, 2023