“helium-oxygen diving”的概念、定义、翻译、参考文献-科学参考

单词	helium-oxygen diving
释义	helium-oxygen diving [`hē·lē·ǝm ¦äk·sǝ·jǝn `dīv·iŋ] ^ENGINEERING Diving operations employing a breathing mixture of helium and oxygen.
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