identify element

基本解释

Another important cue is to clearly identify which element you are dragging to.
另一个重要的操作是清晰标识出要拖动到的目标元素。
For assistive technology to identify the element on the HTML page, the ID should be unique, or there will be confusion about which element is the correct one.
对于用来识别 HTML 页面上的元素的辅助技术来说，ID 应该是惟一的，否则就会产生混乱，无法确定哪一个才是正确的元素。
As you may remember from the previous article, the primary thing that Application Developer adds to the EJB DD is the id attributes that uniquely identify each element within the DD.
您可能记得上一篇文章中，Application Developer 添加到 EJB DD 的主要内容是唯一标识 DD 内每个元素的标识属性。