问题:单级离心泵开车时应关闭() ,再启动() 是为了防止(),而烧坏电动机。
Saturday, April 27, 2024
Saturday, April 27, 2024
Saturday, April 27, 2024
Tuesday, October 4, 2022
问题:用压力表测量液位时,仪表安装的高度应与液位零位的高度(),否则,应对()进行修正。
Tuesday, September 13, 2022
Wednesday, January 3, 2024
Saturday, April 27, 2024
问题:在换热器内可以使物料进行()或(),也可以使物料()或()。
Wednesday, October 26, 2022
Saturday, September 10, 2022
Friday, April 7, 2023
Thursday, January 4, 2024
Thursday, January 4, 2024
Friday, June 23, 2023
Saturday, November 25, 2023
问题:压力容器按压力大小分为四个等级,如低压容器压力值为()Mpa,高压容器压力值为()Mpa。
Tuesday, September 13, 2022
Friday, January 19, 2024
Saturday, November 25, 2023
Friday, January 19, 2024
Thursday, January 4, 2024
Thursday, January 4, 2024