gas and air
短语释义与例句
n.
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1.
An equal mixture of nitrous oxide and oxygen, used as a mild analgesic and anaesthetic, particularly during childbirth, for dental procedures, and in emergency medicine.
习语 不可数 医学Meronyms: nitrous oxide, N₂O; oxygen (strict sense), oxygen (loose sense), dioxygen, O₂
Near-synonym: Entonox (trade name: one particular brand)
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2.
Used other than figuratively or idiomatically: see gas, and, air.
不可数