名词短语
中文翻译：关闭的抽水机
同义词：
['Closed pump', 'Closed suction pump例句：1. The closed pump is essential for maintaining the water level in the reservoir.（闭式抽水机对于保持水库水位至关重要。）']
例句：
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1. The closed pump is essential for maintaining the water level in the reservoir.
闭式抽水机对于保持水库水位至关重要。
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2.The closed suction pump is used to remove contaminants from the water.
闭式抽水机用于从水中去除污染物。
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3. The closed pump is designed to be more energy-efficient than its open counterparts.
闭式抽水机设计得比其开放式对应产品更节能。