A material known as triplex glass had been experimentally made.
If there is plenty of power a triplex or three cylinder pump is still better.
He had been deprived of his leather flying-coat, triplex glasses, and fur-lined boots.
We had triplex boosters installed last year, but that comes more under the classification of auxiliary power.
The chief, who had been inspecting the power-plant, walked along the triplex lead and joined his followers at its terminus.
Both women also bore a triplex of scars down the left sides of their faces.
Read, if necessary, some short account of the triplex acies, the usual Roman order of battle.
He is triceps "three-headed," triplex or tergeminus "threefold," triformis "of three bodies," or simply Tricerberus.
The triplex glass used in the eyepieces was a patented commodity produced only in one small factory in Philadelphia.
Wear goggles fitted in a fencing mask, the goggles of thick strong pebble glass or of triplex safety glass (which is lighter).