іоносферне поглинання
ionospheric communication
long-distance ionospheric-scatter communication
atomic absorption coefficient
absorption
absorption factor
ozone absorption
ultrasonic absorption
ultraviolet absorption
atmospheric absorption
atmospheric absorption curve
atmospheric sound absorption
specific absorption rate
water vapour absorption
ground absorption
heat absorption
moisture absorption
noise absorption
radiation absorption
selective absorption
sound absorption
sound absorption equation
sound absorption equation coefficient
thermal absorption
absorption of territory
radio wave absorption