submillimetre wave propagation
alternative label: sub-MM wave propagation
related: millimetre wave propagation
broader: radiowave propagation
preferred label: انتشار موج زیرمیلیمتری @fa
type: Concept

radiowave propagation
preferred label: انتشار موج رادیویی @fa
type: Concept
narrower: submillimetre wave propagation

millimetre wave propagation
preferred label: انتشار موج میلیمتری @fa
type: Concept
related: submillimetre wave propagation