In structure, attributes look a lot like sub-elements (unordered ones), so a similar enforcement mechanism can be added to later versions of gnosis.xml.validity.
在结构上，属性非常象子元素(未排序的)，所以类似的强制机制可以添加到gnosis . xml . validity的以后版本中。
2
XML Schema 1.1 extended this further by providing a mechanism to accept sub-elements other than those explicitly defined in the content model.
XML Schema 1.1 通过提供一种机制来接受除内容模型中显式定义的子元素之外的子元素，进一步扩展了这一特性。
3
The infrared sub image system with rosette scanning is composed of a rosette scanning mechanism and a single element infrared detector.