“open-circuit scuba”的概念、定义、翻译、参考文献-科学参考

单词	open-circuit scuba
释义	open-circuit scuba [`ō·pǝn ¦sǝr·kǝt `skü·bǝ] ^ENGINEERING The simplest type of scuba equipment, in which all exhaled gas is discharged directly into the water and the utilization of gas is therefore equal to the mass exhaled.
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