问题:对带电设备着火时,应使用干式灭火器、一氧化碳灭火器等灭火,不得使...
Thursday, September 15, 2022
问题:“一物体的处于平衡状态”指的是什么?平衡状态是物质的机械运动状态...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:试述发电机转子吊入前制动风闸顶面高程的调整方法。...
Sunday, September 11, 2022
问题:已知某发电机热打磁轭键时,要求磁轭单侧紧量为0.05mm,磁轭键...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:零件图是指导生产组织活动的依据,是加工制造和检验零件的重要技术文...
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:使用尼龙轴套的导叶,在运行中因尼龙轴套吸水膨胀与导叶轴颈“抱死”,也会造成剪断销剪断...
Thursday, January 25, 2024
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:计算机的硬件是指构成电脑的实际配备设备,包括CPU、内存储器、主...
Thursday, September 15, 2022
问题:导叶漏水量较大的机组,导叶全关后,机组转速很难达到25%en,则制动转速应适当()。A、提高;B、降低;C、不变;D、可提高也可降低;...
Saturday, October 8, 2022
Sunday, September 11, 2022
问题:导叶漏水量较大的机组,导叶全关后,机组转速很难达到25%ne,则...
Sunday, September 11, 2022
问题:贯穿推力轴承镜板镜面中心的垂线,称为机组的()。...
Sunday, September 11, 2022
Sunday, September 11, 2022