Our Wall
  • jiachuan
    jiachuan created a new blog post
    What is a Pump
    What does pump mean?
    A pump is a mechanical device used to force a fluid (liquid or gas) forward in a pipe or hose. They are also used to c...
    Apr 21 '23
    0 0
Mobile version | Terms of use | Privacy Policy | PoemsBook | Khedmeh | As7abe | Nasseej | Debwan | ICICTE
© Copyright Our Wall
Oxwall Community Software