True, they're not quite as compact because of the built-in mechanisms for switching from one focal length to the other.

Probably the most important lesson here is that any proposed changes ought to have a built-in mechanism for its own destruction.

There is a built-in mechanism for organizations called the group.

We have a built-in mechanism that fills us with horror when predators are about.

We select from a range of built-in mechanisms.

Not only is there no built-in mechanism, but adding more music requires the Music Manager.

Since the municipal elections here are nonpartisan, there was never any primary election or a built-in organizational mechanism to support opposition candidates.

The mint example makes use of a built-in mechanism called a sealer.

In most industrialized countries there is a built-in corrective mechanism when an economy veers off course.

This is why many flowers that could potentially self-pollinate have a built-in mechanism to avoid it, or make it second choice at best.