名词
中文翻译：内部清洁
同义词：
['internal cleaning', 'internal scrubbing']
例句：
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1. The company insists on regular internal brushing to maintain cleanliness.
公司坚持定期进行内部清洁以保持清洁。
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2. During the operation, the surgeon performed an internal brushing to remove any debris.
手术中，外科医生进行了内部刷洗以清除任何碎片。
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3. After the surgery, the patient was given a thorough internal brushing to prevent infection.
手术后，患者接受了彻底的内部刷洗以防止感染。