便携式和手持式多媒体设备.移动计算机.蓄电池运行时间的测量

[中文适用范围]： 定义了可由电池驱动的便携式和手持式多媒体设备，特别是移动个人电脑的操作模式组合，以明确电池运行时间的标准化问题。 [外文原描述]： defines the operation-mode mix of portable and hand-held multimedia equipment which can be driven by battery, especially mobile personal computers, in order to clarify the issues to be standardized on the battery run time.