名词
中文翻译：Unknown
同义词：
['air test', 'air inspection', 'air survey']
例句：
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1. The company conducts regular air checks to ensure the safety of its employees.
该公司定期进行空气检查，以确保员工的安全。
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2. Before the flight, passengers are required to undergo an air check for security reasons.
出于安全原因，乘客在飞行前需要进行空气检查。
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3. The government conducted a thorough air check on the chemical factory to detect any hidden hazards.
政府对化工厂进行了彻底的空气检查，以检测任何隐藏的危险。