Assertion: portable shortwave radio set | /r/ObjectUse | used by military
Facets:
value: for decades
type: TEMPORAL
Source sentences:
text: Portable shortwave radio sets have been used by militaries for decades because they allow two way, long-range communication without the need for an existing local radio infrastructure.
text: Portable shortwave radio sets have been used by militaries for decades because they allow two way, long-range communication without the need for an existing local radio infrastructure.