Saturday, September 17, 2022
问题:压力继电器是一种将压力信号转换为()信号的液压元件。它()增大或减少系统压力。
Monday, September 12, 2022
问题:连杆大头孔内安装的是()。A、滑动轴承B、滚动轴承C、推力轴承D、球轴承
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, November 11, 2023
Saturday, September 17, 2022
问题:D85—18推土机的变速系统除装有调压阀外,还安装有减压阀,是专为()设置的。
Saturday, September 17, 2022
Sunday, September 11, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:NTA-855-C360康明斯发动机汽缸盖上一般装有什么?
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, April 6, 2024
Saturday, September 17, 2022
Saturday, September 17, 2022
Thursday, April 6, 2023
问题:液压系统的辅助元件主要有()。A、滤油器B、油箱C、油管D、油泵
Saturday, September 17, 2022
问题:三角带传动和平型带传动相比较,其主要优点是()A、在传递相同功率时,尺寸较小B、传动效率高C、寿命长D、价格便宜
Saturday, September 17, 2022
问题:发动机在启动前,应检查机油在油尺"H""L"之间才可启动。
Thursday, April 6, 2023
问题:上海—120红旗—100推土、铲运机挠性联结块可以用柴油清洗。()
Saturday, September 17, 2022