000			00311nam a2200133Ia 4500
008			230913s9999 xx 000 0 und d
082			_a621.5 che
100			_aCherkassky, U.M.
245		0	_aPumps Fans Compressors
260			_bM.I.R.
260			_c1980
300			_a388
650			_aMechanical Engineering
999			_c145383 _d145383