这里元素用于粘贴影像树中的标签，并随时保持标签的同步。
So here my element pastes the text label in the shadow tree, and stays in sync with the label at all times.
iPhone 不能作外置硬盘使用，要传媒体文件（音乐、照片、影像）和个人资料（通讯录、日历）必须通过 iTunes 同步。
You can’t use the phone as an external hard drive, the only way to have media files (music, photo and video) and personal info (contact list, calendar) copied to the phone is iTunes synching.
采用遥感卫星影像数据结合实地同步测定的方法，对北京规划市区地面热场状况进行研究。
The status quo of the ground thermal field in the planned Beijing city proper has been systematically researched through the method of remote sensing measuring and on-spot measuring.
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