这意味着必须随需增加以occi管理的、附有Hadoop任务跟踪器和数据节点的虚拟机。
This means that OCCI-managed virtual machines with Hadoop's Task Trackers and Data Nodes must be added on-demand.
通过位置跟踪器获取操作者手掌的位姿数据，采用数据分解和矩阵变换的方法将其映射为虚拟手掌在虚拟现实环境中的位姿，实现了对虚拟手的准确控制。
The gestures of real palm that obtained by position tracker are mapped to the gestures of virtual palm in the virtual reality environment by data mapping and transfer matrixes.
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