Wednesday, March 12, 2025
Tuesday, July 22, 2025
Wednesday, March 12, 2025
问题:电机转速小于700r/min时,振动值应小于()。A、0.06mmB、0.10mmC、0.12mmD、0.16mm...
Tuesday, December 12, 2023
问题:万用表使用完毕后,应将选择开关拨在()。A、电阻档上B、最高电压档上C、交流电压档上D、电流档上...
Monday, January 29, 2024
问题:当四抽压力大于()后,除氧器由辅汽倒至四段抽汽,除氧器由定压运行变为滑压运行。A、0.2MPaB、0.4MPaC、1.0MPa...
Wednesday, August 7, 2024
Monday, September 23, 2024
Tuesday, November 14, 2023
Friday, December 22, 2023
Monday, December 2, 2024
Monday, April 21, 2025
Monday, September 12, 2022
Tuesday, December 12, 2023
问题:交流电完成一次循环所需要的时间叫()。A、频率B、周期C、速率D、正弦曲线...
Saturday, September 14, 2024
Wednesday, March 12, 2025
Sunday, July 27, 2025
Thursday, May 18, 2023
Wednesday, September 18, 2024
问题:国产电动机滑动轴承最高允许温度为(),油温最高允许为()。滚动轴承:最高不得超过()。...
Wednesday, March 19, 2025
问题:给水温度下降,锅炉燃料量不变的情况下,过热汽温()。A、下降B、升高C、不变...
Friday, April 18, 2025