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1. The automatic oxygen generator is essential for the survival of astronauts in space.
自动制氧机对于太空中的宇航员的生存至关重要。
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2. The hospital has installed an automatic oxygen generator to provide additional oxygen for patients in need.
医院已经安装了一台自动制氧机，为需要额外氧气的患者提供帮助。
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3. The new model of the automatic oxygen generator has been launched, offering better performance and longerservice life.
新型自动制氧机已推出，性能更佳，使用寿命更长。