最終更新日：2024/07/29

(underwater diving) A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.

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heliair

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heliair

noun

(underwater diving) A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.

I used heliair for my deep-sea diving expedition.

意味（1）

(underwater diving) A mixture of helium, nitrogen and oxygen, used as a breathing gas instead of normal air.