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你可以在数据集里面先关联两个表 先建立两个内部数据集，然后在用关联数据集关联 具体的可以参考一下文档https://docs.airiot.cn/user-manual/%E6%95%B0%E6%8D%AE%E5%88%86%E6%9E%90/%E6%95%B0%E6%8D%AE%E9%9B%86
