问题:单选题水斗式水轮机的标称直径系指:()A 转轮室内径;B 叶片进口边;C 节园直径...
Wednesday, February 14, 2024
Thursday, September 22, 2022
问题:判断题机械制动是水轮发电机组目前唯一的制动方式。A 对B 错...
Wednesday, February 14, 2024
问题:测机组主轴摆度时,在主轴任意轴号上设百分表所以:()...
Thursday, September 22, 2022
问题:在标注尺寸时,要求所注尺寸能完全表达出物体的形状和大小,且不能重复,不能遗漏。...
Friday, September 16, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Friday, September 16, 2022
Friday, September 23, 2022
Friday, September 16, 2022
问题:测摆度时为什么要同时记录机组所带的负荷,开度及当天的上下游水位?...
Thursday, September 22, 2022
Wednesday, September 21, 2022
问题:单选题圆锥销具有()的锥度,所以不容易松动。A 1∶100;B 1∶25;C 1∶50;D 25∶1。...
Friday, February 24, 2023
Monday, September 19, 2022
Friday, September 16, 2022
问题:单选题运行中我们监视的机组摆度是()。A 绝对摆度;B 全摆度;C 净摆度;D 相对摆度。...
Sunday, July 30, 2023
Thursday, September 22, 2022
问题:什么叫摆度,净摆度,相对摆度和绝对摆度、主轴倾斜与净摆度有何关系?...
Thursday, September 22, 2022