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
Thursday, September 15, 2022
Thursday, September 15, 2022
Sunday, June 25, 2023
Wednesday, March 8, 2023
Saturday, December 23, 2023
Wednesday, March 8, 2023
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
Saturday, December 23, 2023
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
Friday, March 31, 2023
Monday, September 12, 2022
Thursday, September 15, 2022
计算题:(B-J-008)已知某泵轴功率为100KW,效率为75%,求该泵的有效功率?...
Monday, October 30, 2023
比转数为60~120时也轮外径最大切削量为()A、10~15%B、15~20%C、10%以上D、20%以上...
Tuesday, April 4, 2023
Monday, October 30, 2023
Tuesday, March 21, 2023
Thursday, September 15, 2022
Wednesday, November 15, 2023
Saturday, February 3, 2024