For example, for an engine with a 9:1 compression ratio, you'd say that it's "nine to one." Now picture a cylinder in your head. The piston moves up and down inside that cylinder.

In most structures, whether natural or man-made, compression forces are the primary actors. ... tend to lengthen components in the direction of the applied force of action. Steel, for example, ...

Compression to EF. For the above formulation, a series of tablets was compressed at a constant force of 650 daN with a nominal tablet weight of 233 mg. Tablets were compressed within ± 4% of their ...