Saturday, December 23, 2023
Monday, September 12, 2022
问题:离心泵的重要部件是()。A、泵体B、密封C、叶轮D、平衡装置...
Friday, March 31, 2023
Friday, March 31, 2023
问题:对于同一台离心泵,流量增加则()。A、轴功率降低B、扬程降低C、效率降低D、转数一定变化...
Thursday, May 2, 2024
Thursday, September 15, 2022
Saturday, February 3, 2024
问题:离心泵的机械损失包括()、()和叶轮圆盘摩擦损失。...
Thursday, September 15, 2022
问题:电流所经过的路径称为()A、短路B、断路C、电路D、电源...
Saturday, December 23, 2023
Wednesday, November 15, 2023
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:所谓()是指冷却液体不和密封端面接触,通过冷却水套或其它方法达到...
Thursday, September 15, 2022
Wednesday, November 15, 2023
问题:离心泵的水头损失包括机械损失、容积损失、水力损失。...
Wednesday, March 8, 2023
Thursday, September 15, 2022
Saturday, December 24, 2022
Monday, October 30, 2023
Thursday, November 2, 2023