Sunday, September 11, 2022
材料力学中,物体的变形有()种基本变形形式。A、4B、5C、6D、7...
Wednesday, July 26, 2023
Sunday, September 11, 2022
对于单位压力较大的推力轴承适当增大其(),对改善其运动性能、提高承载能力、增加油膜厚度是有利的。A、冷却水量;B、偏心率;C、推力瓦厚度;D、冷却水压;...
Thursday, January 25, 2024
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
悬吊型水轮发电机主轴与水轮机主轴连接的形式,多为()连接。...
Sunday, September 11, 2022
Sunday, September 11, 2022
Thursday, January 25, 2024
水力机组检修可以分为几类?各类周期如何(根据各厂情况回答)?...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
刚性支柱式推力轴承推力瓦的单位压力比弹性支柱式推力轴承推力瓦的单位压力()。A、高;B、一样;C、低;D、不能确定;...
Wednesday, July 26, 2023
为下次机组大修拔键的方便,长键的上端应留出()mm左右的长度。A、100;B、150;C、200;D、250;...
Monday, August 7, 2023
Sunday, September 11, 2022
已知B型垫圈,公称尺寸为10mm,标准代号为GTB97—76,请...
Sunday, September 11, 2022
Sunday, September 11, 2022