1·In addition to the predefined fields, you can add extra custom fields to the extension mappings by defining custom attributes on the mappings.
除了预定义的字段外，通过对映射定义定制属性，您还可以向扩展映射添加额外的定制字段。
2·This property contains a predefined value of the sort of operation or state transition the component wants to propagate up to the application level.
这个属性包含这个组件希望传播到应用程序级的一个预定义值，这个值表示操作的类型或状态迁移。
3·Below is an example from the predefined list of gestures.
以下是来自于手势的预定义列表中的例子。
4·We now also know how to bind content to the viewer and could even expand this to add custom or predefined filters.
现在我们还了解了如何将内容绑定到查看器，还可以扩展它以添加自定义或预定义的过滤器。
5·One way to use predefined content as part of an SVG drawing is with the element.
使用预定义内容作为SVG绘图一部分的方法之一是使用元素。