求翻译：1。虚拟存在：4G系统中无处不在的主题与增强现实多媒体通信的想法，给移动用户一个“虚拟的存在”，例如，始终保持在经营活动中所涉及的人，无论他们是否连接。现场或关闭是什么意思？

1. Virtual Presence: 4G systems everywhere in the theme and the idea of ​​augmented reality multimedia communications to mobile users a "virtual presence", for example, remain in the business activities of the people involved, whether they are connected. On-site or off

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1.Hypothesized existence: In the 4G system is ubiquitous the subject and the enhancement reality multimedia correspondence idea, for mobile subscriber one “the hypothesized existence”, for example, throughout maintains the human who involves in management, regardless of they whether connects.Scene o

1. Virtual presence: 4G systems augmented reality and ubiquitous theme in multimedia communication ideas, give mobile users a "virtual presence", for example, is always maintained at who is involved in business activity, whether or not they are connected. Live on or off

1. Virtual Presence: 4G systems everywhere in the theme and the idea of ​​augmented reality multimedia communications to mobile users a "virtual presence", for example, remain in the business activities of the people involved, whether they are connected. On-site or off