Previous attempts at filtering and oxygenating aquarium water had failed.

之前嘗試過幾次將魚缸中的水過濾并充氧，但都沒有成功。

...freshly oxygenated blood.

剛充氧的血液

To aerate or oxygenate ( blood ).

提供氧氣向血液供氧或加氧于 ( 血 )

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Uses: Mainly used in battery, also used as oxygenate and in making enamel.

用途: 主要用于電池行業(yè), 也用于氧化劑和制作琺瑯.

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