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7 hours ago · In closed circuit rebreathers the breathing loop gas mixture is either known (100% oxygen) or monitored and controlled within set limits, by either the diver or the control circuitry, but in the case of semi-closed rebreathers, where the gas mixture depends on the predive settings and diver exertion, it is necessary to calculate the possible range of gas composition during a dive.
7 hours ago · gary.gov. Gary ( / ˈɡæri / GARR-ee) is a city in Lake County, Indiana, United States. The population was 69,093 at the 2020 census, [4] making it Indiana's eleventh-most populous city. The city has been historically dominated by major industrial activity and is home to U.S. Steel 's Gary Works, the largest steel mill complex in North America.
