gas bomb; gas bracket; gas burner; gas chamber; gas company; gas constant; gas cooker; gas embolism; gas engine; gas fitter; gas fitting; gas fixture; gas furnace; gas gage; gas gangrene; gas gauge; gas giant; gas gun; gas guzzler; gas heat; gas heater; gas helmet; gas holder; gas jet; gas lamp; gas line; gas main; gas maser; gas meter; gas mileage; gas oil; gas oven; gas pedal; gas phlegmon; gas plant; gas pressure; gas pump; gas range; gas ring; gas service; gas shell; gas station; gas stove; gas system; gas tank; gas thermometer; gas turbine; gas up; gas well; gas-cooled reactor; gas-discharge lamp; gas-discharge tube; gas-filled; gas-tight; gas-turbine ship;