名词
中文翻译：门的喇叭口
同义词：
['bell mouth', 'mouthpiece', 'mouthpiece orifice例句：1. The bell mouth of the door is a crucial part of the mechanism.（门的喇叭口是这个机制的关键部分。）']
例句：
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1. The bell mouth of the door is a crucial part of the mechanism.
门的喇叭口是这个机制的关键部分。
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2.The engineer carefully adjusted the bell mouth to ensure optimal performance.
工程师仔细调整了喇叭口，以确保最佳的性能。
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3. The bell mouth was designed to minimize noise and improve acoustics.
喇叭口的设计旨在最小化噪音并提高声学效果。