单词heavy oxygen
na.: 【化】重氧
网络: 重酸素
【化学】重氧
They breathe through uncomfortable respirators or carry heavy oxygen tanks on their backs.
他们或通过防毒面罩，或携带沉重的氧气瓶进行呼吸。
Curative Effect of Heavy-oxygen-enriched Water on Obviating Acute Altitude Reaction
富氧水预防急性高原反应的疗效观察