Wednesday, January 11, 2023
离心泵在运行过程中,空气漏入泵内造成(),使泵不能正常工作。A、气阻B、气缚C、汽蚀...
Wednesday, May 15, 2024
904J/JS、905J/JS、906J/JS有备用电源。...
Thursday, April 25, 2024
驱动蒸汽透平的蒸汽均采用过热蒸汽,这是因为该蒸汽()。A、温度高,焓值高B、焓值高,做功全过程不产生相变化C、温度高,做功全过程不产生相变化...
Wednesday, May 15, 2024
Saturday, November 18, 2023
Saturday, November 18, 2023
Wednesday, May 15, 2024
往复式压缩机超压原因()。A、后路不通;B、二级出口或一级出口活门漏;C、压缩比不对;D、入口堵塞...
Friday, June 16, 2023
Tuesday, September 13, 2022
101J主油泵出口压力低于()MPA启辅油泵。A、0.88B、0.774C、0.633...
Thursday, August 24, 2023
Wednesday, January 11, 2023
Sunday, September 11, 2022
FIC8是124C出口气返回到103J低压缸的防喘振阀。...
Saturday, June 24, 2023
二氧化碳气提法尿素装置的副产蒸汽压力对尿素合成反应温度及压力没有太大影响。...
Saturday, March 2, 2024
离心泵在运行过程中,空气漏入泵内造成气缚,使泵不能正常工作。...
Tuesday, September 13, 2022
Friday, November 25, 2022
一般泵在运行中轴承温度最高不能超过()℃。A、65B、75C、85...
Saturday, February 3, 2024
102J压缩机开车前的氮气置换含氧不大于:()A、0.5%B、0.6%C、0.7%D、0.8%...
Thursday, August 24, 2023
水泵轴承一般采用钠基润滑脂,此种润滑脂具有抗水性,不能使用钙基润滑脂。...
Wednesday, May 15, 2024
离心式CO<sub>2</sub>压缩机组减负荷时,应本着()、...
Sunday, September 11, 2022