Argon; methane; isotopes for industrial purposes; chemical preparations for preserving foodstuffs; chemicals for absorbing gases in the nature of ethylene; seed preserving substances in the nature of agricultural seed preservatives; biochemical catalysts; fire extinguishing compositions; welding chemicals

'absorb':14 'agricultur':28 'argon':1 'biochem':31 'catalyst':32 'chemic':7,12,37 'composit':35 'ethylen':20 'extinguish':34 'fire':33 'foodstuff':11 'gase':15 'industri':5 'isotop':3 'methan':2 'natur':18,26 'prepar':8 'preserv':10,22,30 'purpos':6 'seed':21,29 'substanc':23 'weld':36

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