问题:在开关压力容器进出口阀门时,要核实无误后才能动作,千万不能搞错。...
Saturday, November 25, 2023
问题:齐格勒催化剂日罐是()A、V3006B、V3005C、V3007D、V3008...
Wednesday, November 16, 2022
问题:电动机的噪声约有为()dB。A、85~110B、110~130C、70~85...
Monday, April 10, 2023
Saturday, September 10, 2022
问题:如果要清理活化反应器的内部过滤器需使用()级防护。...
Saturday, September 10, 2022
问题:颗粒发灰的原因是()A、粉料中钛含量高B、添加剂加得多C、颗粒被污染...
Thursday, May 4, 2023
Thursday, February 1, 2024
Thursday, May 11, 2023
问题:离心泵解体大修后,安装时要进行()以保证设备的正常运行。A、联轴节找正B、地脚螺栓紧固C、电机空试D、以上都正确...
Thursday, March 21, 2024
问题:炔烃的同系物是()A、烷烃B、烯烃C、环烷烃D、二烯烃...
Sunday, March 31, 2024
Saturday, September 10, 2022
Sunday, September 11, 2022
Sunday, February 18, 2024
Sunday, September 11, 2022
问题:以下()不属于HDPE装置使用的主要原料。A、乙烯B、己烯-1C、氢气D、戊烷...
Sunday, June 4, 2023
问题:在多层平壁传导中,总推动力应该等于最大推动力与最小推动力之差。...
Wednesday, November 16, 2022
Sunday, February 18, 2024
问题:在单峰操作中,反应器粉料分析取样点在()。A、V3001B、V3002C、V4001D、V4003...
Sunday, February 18, 2024
Saturday, September 24, 2022
问题:自动调节系统与自动测量、自动操纵等开环系统比较,最本质的差别就在...
Saturday, September 10, 2022