名词
中文翻译：循环主泵
同义词：
['recirculating pump', 'recirculating pump system']
例句：
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1. The recirculating main is responsible for maintaining the water temperature in the pool.
循环主泵负责维护游泳池的水温度。
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2. The recirculating main helps to reduce energy consumption in the swimming pool area.
循环主泵有助于减少游泳池区域的能源消耗。
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3. The recirculating main is designed to prevent algae growth and maintain a clean environment.
循环主泵设计用来防止藻类生长并保持清洁环境。