Hydraulic press and Mechanical press

Hydraulic press noun - Press in which a force applied by a piston to a small area is transmitted through water to another piston having a large area.

Mechanical press and hydraulic press are semantically related. In some cases you can use "Mechanical press" instead a noun phrase "Hydraulic press".

Mechanical press noun - Any machine that exerts pressure to form or shape or cut materials or extract liquids or compress solids.

Hydraulic press and mechanical press are semantically related. Sometimes you can replace phrase "Hydraulic press" with "Mechanical press", this phrases are similar.