maintenance and repair of air traffic control rodar an air traffice control simulators and acoustic monitoring systems for submarines

'acoust':15 'air':5,10 'control':7,12 'mainten':1 'monitor':16 'repair':3 'rodar':8 'simul':13 'submarin':19 'system':17 'traffic':6,11

air traffic control radar, air traffic control simulators and electronic acoustic monitoring apparatuses for submarines

'acoust':11 'air':1,5 'apparatus':13 'control':3,7 'electron':10 'monitor':12 'radar':4 'simul':8 'submarin':15 'traffic':2,6

TIG

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