名词
中文翻译：Unknown
同义词：
['rib expander', 'rib expandor', 'rib expander machine']
例句：
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1. The patient was given a rib expander to help with his breathing.
患者被给予一个肋骨扩张器以帮助呼吸。
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2. The doctor used a rib expander to treat the patient's chest pain.
医生使用肋骨扩张器治疗患者的胸痛。
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3. The rib expander was removed after the surgery, and the patient recovered quickly.
手术结束后，取出了肋骨扩张器，患者很快康复了。