名词短语
中文翻译：操作铃
同义词：
['operating bell', 'operating bell system例句：1. The operating bell is responsible for alerting the crew to emergencies.（操作铃负责向机组人员发出紧急情况的警报。）']
例句：
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1. The operating bell is responsible for alerting the crew to emergencies.
操作铃负责向机组人员发出紧急情况的警报。
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2.The operating bell system ensures that all crew members are aware of any changes in the weather conditions.
操作铃系统确保所有机组人员都能意识到天气状况的任何变化。
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3. The operating bell was designed to provide audible signals to the crew during critical moments.
操作铃被设计成在关键时刻向机组人员提供声音信号。