问题:蒸汽在汽缸中工作的过程分几个阶段()。A、1B、2C、3D、4...
Monday, May 6, 2024
Tuesday, September 26, 2023
问题:车钩承受机车或吊车的()和冲击力因此要求强度好作用可靠开闭方便。...
Wednesday, May 1, 2024
Thursday, April 20, 2023
Monday, September 12, 2022
问题:蒸汽吊车主要有哪几大部分组成?各部分包括哪些主要结构?...
Tuesday, September 26, 2023
Monday, September 12, 2022
Wednesday, September 14, 2022
Monday, September 12, 2022
问题:不属于锅炉安全附件的是()。A、压力表B、水位表C、温度表D、安全阀...
Monday, May 6, 2024
问题:把1千克纯水从14.5℃加热到15.5℃所需要的热量规定叫做1千...
Wednesday, September 14, 2022
Wednesday, September 14, 2022
问题:汽缸勾贝即汽缸活塞,它在锅炉送来的蒸汽作用下,在汽缸内高速回转运...
Monday, September 12, 2022
问题:1千克100°水蒸汽凝结成水时要放出539千卡的热量。...
Wednesday, September 14, 2022
Thursday, July 27, 2023
Saturday, March 18, 2023
问题:Z451蒸汽吊车使用三轴转向架固定轴距2440毫米,可以通过半径...
Wednesday, September 14, 2022
Sunday, September 24, 2023
Wednesday, September 14, 2022
Sunday, October 22, 2023