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гладкий шум stresses
astronaut.	stochastic noise; white noise
el.	fluent noise
tech.	continuous noise; continuous-spectrum noise
гладкий хаотический шум
media.	uniformly distributed constant amplitude frequency spectrum; additive white Gaussian noise; uniform random noise; uniform spectrum random noise; white noise; flat random noise

гладкий шум: 9 phrases in 4 subjects

Automobiles	1
Communications	2
Mass media	5
Transport	1