By necessity they always have an even number of blades, as each opposing pair is mechanically connected to prevent vibration.

It is mechanically connected to a light bulb.

To generate ice at night, the turbine is often mechanically connected to the compressor of a large chiller.

With all this technology literally at our fingertips, many people insist on using the computer keyboard as if it were mechanically connected to the printer.

Often the turbine and the compressor are mechanically connected through a single shaft.

The organ uses electricity only to supply air, with the keyboards mechanically connected to the pipes.

These speed variations can cause load-sharing problems when differently sized motors are mechanically connected.

Previously, ship speed was judged by spinning shafts that were mechanically connected to the propellers.

This bar was mechanically connected to a vertical pointer which would indicate the approximate position of the aircraft on the map grid.