Thursday, September 22, 2022
问题:金属材料随着冷塑变形程度的增大,强度和硬度逐渐降低。...
Sunday, September 18, 2022
问题:填空题气缸垫装在气缸体与气缸盖之间起()作用,防止()、()。...
Tuesday, February 18, 2025
Thursday, September 15, 2022
问题:叉车工作装置的液压系统由动力元件、执行元件、控制元件、辅助元件和工作介质组成。...
Thursday, September 22, 2022
Thursday, September 15, 2022
问题:判断题湿式气缸下部外圆有两条环形槽,内装橡胶圈,主要起封油作用。A 对B 错...
Friday, January 31, 2025
问题:每天早上冷车起动发动机后,应怠速运转3--5分钟,待水温表达到(50-60)C再起步。142指示发动机润滑系主油道中机油...
Thursday, September 22, 2022
问题:为了平衡连杆大头、连杆轴颈和曲柄等产生的()及其(),一般都会在曲柄的相反方向设置()。...
Tuesday, September 20, 2022
Thursday, September 22, 2022
问题:机动车辆制动装置常见故障表现在转向沉重、车辆摆头、行驶偏向。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题叉车的液压工作装置分为两部分,即()。A 工作装置和液压装置B 货铲和油缸C 门架和货铲...
Thursday, August 24, 2023
问题:叉车司机要身体好.思想好.技术好.才能操作叉车作业。...
Wednesday, September 21, 2022
Thursday, September 22, 2022
问题:判断题液压系统严重无工作介质,叉车货叉不能起升A 对B 错...
Monday, February 10, 2025
Monday, September 19, 2022
Thursday, September 22, 2022
Thursday, September 15, 2022
问题:多选题制动力不足的原因()。A制动油管漏油B制动管路有空气C蹄片与制动鼓间隙过大D蹄片表面含水或油...
Thursday, August 22, 2024