名词
中文翻译：鱼鳍致动器
同义词：
['gill pump', 'gill valve']
例句：
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1.The fish uses its gills to filter the water and extract oxygen.
鱼通过鳃过滤水并提取氧气。
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2. The gill actuator is essential for maintaining proper water flow through the aquarium.
鳃泵对于保持鱼缸内水流畅通至关重要。
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3.In some species, the gills are modified into specialized structures that aid in gas exchange.
在有些物种中，鳃被改造成特殊的结构，以帮助气体交换。