A collection of sensor nodes record temperature and battery level readings and send them to a collection node for off-line processing.
一些传感器节点记录温度和电量水平信息并发送给采集节点。
Once you select a node (or a collection of nodes), you can find the data you're looking for and manipulate the document when you need to.
一旦选择了一个节点(或一个节点集合)，就可以找到您正在寻找的数据以及在需要时操纵文档。
A Node Group is a collection of machines that form a resource pool.
节点组是一个机器集合，它们形成一个资源池。
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