以下为句子列表：
英文: The air conditioning or heating water systems with primary water system in heat source or cold source side and secondary water system in load side divided by direct connection mode need to adopt connectors or water mixers.
中文: 摘要用直接连接方式划分热源（或冷源）侧一次水和负荷侧二次水的供暖或空调水系统，需要采用连通器或混水器。
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