The walls of the tubes were machined precisely so that they would carry the acid to the remotest tubes just before dissolving themselves.

For example, to increase penetrative power, a large and specially hardened steel plug had to be precisely machined and mated to a recess in the nose of the bomb.

Spirit duplicators, whose demanding tolerances and constant fog of solvent fumes necessitated precisely machined metal parts and closed architecture, tended to have a deceptively clean and simple look.

Heber Young returned a nod at least as precisely machined.

Most forging operations use metal-forming dies, which must be precisely machined and carefully heat-treated to correctly shape the workpiece, as well as to withstand the tremendous forces involved.

Unless the lock is machined precisely, when the pin is pulled outward, one of the teeth will pull more strongly than the others on its corresponding disc.

Pillar bedding uses precisely machined metal pillars in the stock which mate with the action, providing a strong metal-to-metal contact without the labor intensive hand fitting required in glass bedding.

They tend to have fewer parts than other types of tripod heads due to their simple mechanism, but the parts must be precisely machined to fit well together and provide smooth movement, increasing their average price.

At just over four hundred kilo- grams each, the bulky cones had to be precisely machined for absolute dynamic symmetry.

Dante's universe had been a complex artifact, with the souls of men and angels shown as precisely machined parts of the vast structure.