Thursday, September 15, 2022
Friday, April 7, 2023
Thursday, September 15, 2022
单选题属于其它类型的水泵的是()A 气升泵B 螺杆泵C 凸轮泵D 轴流泵...
Sunday, December 10, 2023
泵80IYⅡ-80与80IYⅡ-802相比,后者扬程高于前者。...
Thursday, September 22, 2022
判断题消防工作方针是“预防为主,消防结合”。A 对B 错...
Thursday, May 9, 2024
Tuesday, September 20, 2022
Thursday, September 22, 2022
单选题热油泵预热速度()℃/h。A 50B 60C 70D 80...
Sunday, June 25, 2023
单选题螺杆泵是一种()泵。A 离心B 齿轮C 柱塞D 容积...
Friday, April 7, 2023
Thursday, September 22, 2022
判断题蝶阀不能调节流量,不能用于高温高压场合。A 对B 错...
Thursday, May 9, 2024
单选题在劳动过程中,工业毒物引起的中毒叫()。A 工伤B 职业中毒C 劳动伤害D 致敏性...
Sunday, June 25, 2023
Friday, September 16, 2022
Thursday, September 22, 2022
水泵的故障主要是由于水泵本身的质量,选型安装不合理,维护管理不当或零件磨损面引起的。...
Monday, September 19, 2022
Tuesday, September 20, 2022
Thursday, September 22, 2022
单选题混流泵安装在流道的()处。A 直管B 斜管C 转弯D 立管...
Friday, June 30, 2023
单选题齿轮泵内有(),所以存在串漏问题。A 闭死容积B 卸荷槽C 卸荷孔D 高、低压腔...
Friday, March 3, 2023