以下为句子列表：
英文: Standing clear of the outlet (discharged water may be hot), slowly lift and release the lever handle on the temperature and pressure relief valve to allow the valve to operate freely and return to its closed position.
中文: 经常清洗出口（排泄水可能是热的），慢慢提起并释放降温减压安全阀上的杠杆手柄，使得阀门能够灵活工作并恢复到关闭位置。
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