Wednesday, October 9, 2024
Saturday, April 6, 2024
Monday, January 22, 2024
问题:比转速不同的离心泵,其几何形状一定不相似;比转数相同的离心泵,其几何形状不一定完全相似。
Sunday, April 7, 2024
Wednesday, October 9, 2024
问题:凝结水泵的出口水压是在负压条件下,因而要求具有良好的密封性能和抗汽蚀性能。
Wednesday, April 12, 2023
Wednesday, December 6, 2023
问题:往复泵适用于()。A、大流量且流量要求特别均匀的场合B、介质腐蚀性特别强的场合C、流量较小,扬程较高的场合D、投资较小的场合
Thursday, August 15, 2024
Saturday, November 25, 2023
Sunday, July 14, 2024
Monday, October 21, 2024
Monday, October 21, 2024
Wednesday, January 10, 2024
问题:给水泵冷油器出口油管最高点设有放气装置,并用分路管道与偶合器箱体相连接。
Friday, May 17, 2024
Wednesday, October 9, 2024
问题:管子外壁加装助片(俗称散热片),目的是使热阻增加,传热量减少。
Thursday, August 15, 2024
Friday, November 17, 2023
Friday, December 15, 2023
Saturday, April 6, 2024