Hey there kiddo, have you ever heard of hydraulics? It's a fancy word that means using fluid (like water or oil) to move things. Now, miniature hydraulics is just like regular hydraulics but on a smaller scale.
So imagine you have a little toy car that you want to move forward and backward. If you use a tiny bit of water or oil as the fluid, and connect it to little tubes or pipes, you can make the toy car move using pressure.
How does that work? When you push on one end of the tube, the fluid inside it gets squeezed and creates pressure, which then pushes on the other end of the tube and makes something move. It's kind of like when you squeeze a balloon and the air inside it makes the balloon move.
Miniature hydraulics can be used for all sorts of things, not just toys. It can be used in medical devices, manufacturing equipment, and even in tiny robots. The possibilities are endless!
So that's a brief explanation of what miniature hydraulics is. It's just using fluid to move things in a small space, like a toy car or a little robot. Hope that helps you understand it better!