问题:单选题国标规定,孔和轴的配合分()类。A 一;B 二;C 三;D 四;...
Sunday, August 20, 2023
Thursday, September 22, 2022
Tuesday, September 20, 2022
Thursday, September 22, 2022
问题:()式装置的水轮发电机,主要用于明槽贯流式、虹吸贯流式机组以及十几米水头以下的其他型式的小型水轮发电机组。...
Saturday, September 17, 2022
问题:转子磁轭和磁极是水轮发电机的主要()元件,整个通风系统中,其作用占()。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:大、中型水轮发电机的转子磁极主要由哪些部件组成?...
Thursday, September 22, 2022
Thursday, September 15, 2022
Friday, September 22, 2023
Thursday, September 22, 2022
Friday, September 16, 2022
Thursday, September 22, 2022
问题:关于大、中型轴流式水轮机转轮室,说法正确的是:()...
Thursday, September 15, 2022
Friday, March 10, 2023
Thursday, September 15, 2022
Wednesday, October 25, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022