construction joints are leave in RCC Slab one third of span.

Slab scissor lift equipment is basically an elevated platform for workmen at a construction site. Slab in the description refers to the appropriate ground surface for this machinery, as opposed to equipment designed for rough terrain. Scissors refers to the accordion type extension, with an enclosed safety platform where the worker can steer and use joy stick controls.

No a slab scissor lift is not a medical procedure. It is a piece of machinery that has a platform lifted by scissor shaped metal pieces.

Certain companies exist that have pumping equipment that will hydraulically lift the slab to the desired height. It's called slab jacking. Other than that, it would be best to tear out and replace the existing slab, using an adequate base material to prevent future settling.

The basement.