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Gyr [dʒai(ə)-] adj.
geochron.	giga annum (MichaelBurov); gigaannum (MichaelBurov); gigayear (MichaelBurov)
gyr. abbr.
abbr.	gyroplane; gyroscope
abbr., earth.sc.	gyratory breaker; gyrocompass
abbr., mining.	gyratory (breaker)
gyr [dʒai(ə)-] abbr.
abbr.	gyratory breaker
abbr., busin.	gyratory; gyroplane; gyroscope
abbr., oil	gyration
GYR [dʒai(ə)-] abbr.
abbr.	gigayear (LyuFi); one billion years (например, 7GYR=7,000,000,000 years LyuFi)
abbr., avia.	Goodyear, Arizona USA
abbr., O&G, sakh.	green-yellow-red (e.g., GYR Report)