diluent
diluent[ˈdɪljʊənt](technical)(技)noun- a substance used to dilute something
稀释剂,冲淡剂
adjective- acting to cause dilution
稀释的,冲淡的
语源- early 18th cent. (denoting a medicine used to increase the proportion of water in the blood): from Latin diluent- 'dissolving', from the verb diluere
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