以下为句子列表：
英文: Make sure the discharge of this valve is directed to an open drain and protected from freezing.
中文: 要确保阀门排泄的水直接排放到一个畅通的排水口，并保证不会冻结。
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英文: Temperature and pressure relief valve properly installed with a discharge line plumbed to an open drain and protected from freezing.
中文: 正确安装降温减压安全阀，并配置排泄管引导至一个敞开的排水口，并确保不会被冻结。
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英文: Temperature and pressure relief valve properly installed with a discharge line run to an open drain and protected from freezing.
中文: 正确安装降温减压安全阀，并配置排泄管引导至一个敞开的排水口，并确保不会被冻结。
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英文: The family of Abigail Taylor says an open drain in a swimming pool sucked out part of her small intestinal tract.
中文: 阿比盖尔·泰勒的家人称游泳池未加盖的排水孔竟将她的小肠吸出。
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