基于表情活动单元的人脸模型自动适配是极低码率可视电话模型基编码所必需的。

The automatic adaptation of a face model using action units is necessary for the model based coding of videophone sequences at very low bit rates.

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此外，活动和非活动单元的活动状态能够使用建议的基于LAN的链路系统被用信号通知出去。

Furthermore, an activity state of active and non-active units can be signaled using the proposed LAN-based link system.

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事务是一个活动单元，其中数据的多个操作可以被原子化(不可分)，精确地说就是所有的活动都是永久的，或者没有一个活动永久的。

A transaction is a unit of activity within which multiple operations on data can be made atomic (indivisible), such that exactly all or none of the actions are made permanent.

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