- gas-ammonia-abbreviation = NH₃
- gas-carbon-dioxide-abbreviation = CO₂
- gas-frezon-abbreviation = F
- gas-nitrogen-abbreviation = N₂
- gas-nitrous-oxide-abbreviation = N₂O
- gas-oxygen-abbreviation = O₂
- gas-plasma-abbreviation = P
- gas-tritium-abbreviation = T
- gas-water-vapor-abbreviation = H₂O
- gas-unknown-abbreviation = X
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