Where speeds may be selected from several different pre-set ranges, usually the drive is said to be adjustable speed.

Some adjustable speed driven applications use less energy than fixed-speed operated loads, variable-torque centrifugal fan and pump loads being by far the world's most energy-intensive.

The jog slider also works in real time, scrubbing through the movie at an adjustable speed in either direction.

The adjustable speed is also useful for increasing the speed as the player becomes more skillful.

Swing's adjustable speed and vacuum make it efficient and comfortable.

Some motors have adjustable speeds; use the slow speed when grilling a large piece of meat.

The DC motor drives the load equipment at an adjustable speed.

On the running deck the subject is moving, who adapts to the adjustable speed of the belt.

If a camera has an adjustable shutter speed, then it's suitable for action photography, film or digital.

Digital poets grab the desired word as it floats by at an adjustable speed, adding a touch of surrealism to the poetic process.