Mr. King, the community-service director here, prepays for gas using tokens that he feeds into his meter.

It is a non-invasive device that measures the concentrations of respired gases using an infrared beam of light.

The Rock Raiders stabilize the gas using water from the nearby lake.

This equation is derived from kinetic theory of gases using Maxwell-Boltzmann distribution function.

It was gas operated, using a sliding muzzle cup system blown forward by the combustion gases while the bullet emerges from the barrel.

The vacuum pump also enabled the weighing of gases using scales.

They work by compressing gas using a piston pushed by a rotor, which spins in an isolated compartment.

A very significant amount of natural gas using infrastructure in the American economy was based on $2 gas.

Forced to work at home, he developed techniques for preparing and collecting gases using what was to hand.

The basic MHD design was to be a system with inert gases using a disk generator.