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METHOD OF AND METER FOR MEASUREMENT OF MEAN VALUE OF PHYSICAL QUANTITIES VS. TIME, ESPECIALLY CONCENTRATIONS OF GASES IN ATMOSPHERIC AIRVREMENNYKH PROCESSOV FIZICHESKIKH VELICHIN, GLAVNYM OBRAZOM GAZOVYKH KONCENTRACIJJ V ATMOSFERNOM VOZDUKHE
METHOD OF AND METER FOR MEASUREMENT OF MEAN VALUE OF PHYSICAL QUANTITIES VS. TIME, ESPECIALLY CONCENTRATIONS OF GASES IN ATMOSPHERIC AIRVREMENNYKH PROCESSOV FIZICHESKIKH VELICHIN, GLAVNYM OBRAZOM GAZOVYKH KONCENTRACIJJ V ATMOSFERNOM VOZDUKHE
