名词
中文翻译：氧气计
同义词：
['oxygen analyzer', 'oxygen sensor']
例句：
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1. The doctor uses an oxygen meter to monitor the patient's oxygen levels during surgery.
医生使用氧气计来监测患者在手术期间的氧水平。
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2. The oxygen meter showed that the room was too small for the number of people present.
氧气计显示房间太小，无法容纳在场的人数。
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3. The oxygen meter is used to measure the amount of oxygen in the air.
氧气计用于测量空气中的氧气含量。