例文
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- At the next stage, oxygen ions concentrated humidity.
- Oxygen gas is fed through the cathode, where it absorbs electrons to create oxygen ions.
- The oxygen ions then travel through the electrolyte to react with hydrogen gas at the anode.
- The radiation was of ionizing nature, and produced negative oxygen ions ( free radicals ).
- It was the first time that O 3 + oxygen ions were detected near a comet.