Words similar to engine--but

Example sentences for: engine--but

How can you use “engine--but” in a sentence? Here are some example sentences to help you improve your vocabulary:

Some technologies can be "predicted"--some forecasters define it as "envelope curve" projections--if you can define the narrow parameters and the physical constraints of particular items, such as Moore's Law on computer-chip speeds and size, or more broadly, the change from a propeller drive plane to a jet engine--but there, the upper limits are 16,000 miles an hour, for that is escape velocity and you are then not in cyberspace but real outer space.