Canceling the event chain for the keyboard event by setting the cancelBubble property on the EVENT object to true
将 EVENT 对象的 cancelBubble 属性设置为 true,取消键盘事件的事件链
Metric property value changes trigger publication of a standard property change event on a standard metrics topic.
规格特性数值的改变会触发关于标准规格主题的标准属性更改事件的发布。
A standard WS-RF property changed event is used and sent to the configuration topic.
使用标准的WS - RF特性改动事件并将其发送到配置主题。
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