对虚拟手的稳定抓持理论进行了探讨，提出了一种改进的虚拟手抓取规则；以及研究了虚拟手操作的具体实现技术。
The grasping theory of virtual hand is studied, then an improved rule for grasping is proposed and also the realization technology of virtual hand operating.
这样的虚拟操作必须是手习惯的动作。
The virtual controls must mimic the physical objects that hands are used to manipulating.
应用结果显示，虚拟手可动态地呈现与人手基本一致的手势，能够比较逼真地实现了虚拟手抓取物体、释放物体等交互操作。
Result shows, virtual hand can dynamically display gesture as nearly consistent as human's hand and succeed in simulating interactive operations such as grasping and loosening the object etc.
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