Tuesday, April 2, 2024
Saturday, October 21, 2023
Saturday, December 2, 2023
问题:绿色试温蜡片在常温下()℃时开始熔化。A、50;B、60;C、70;D、80。...
Thursday, December 14, 2023
问题:汽轮机盘车状态时,对氢冷发电机的密封油系统运行有何要求,为什么?...
Saturday, April 13, 2024
问题:电解槽的电源采用()。A、直流电;B、交流电;C、交、直流两用;D、交、直流切换。...
Saturday, October 21, 2023
Sunday, September 11, 2022
Wednesday, April 26, 2023
Wednesday, November 8, 2023
Tuesday, April 2, 2024
问题:当温度升高时,半导体的电阻将()。A、增大;B、减小;C、不变;D、相等。...
Thursday, December 14, 2023
问题:电机排污应缓慢地打开排污门和补氢门,在排污过程中应维持()没有较大的变化。A、油压;B、风压;C、水压;D、氢压。...
Friday, December 22, 2023
Wednesday, July 12, 2023
Thursday, October 12, 2023
Monday, December 18, 2023
Tuesday, November 14, 2023
问题:为防止压缩空气漏入机内与氢气混合形成爆炸性气体,氢冷发电机的压缩空气管道应有(),当以氢冷方式运行时,可以将其断开。A、活动接头;B、固定接头;C、阀门隔绝;D、堵板。...
Saturday, October 21, 2023
Wednesday, October 25, 2023
Saturday, December 2, 2023
Friday, December 22, 2023