调号位于一篇音乐作品或一章节的开始部分，来表示该作品或章节的调域。
A key signature is placed at the beginning of a piece of music or of a section to indicate the key of the piece or section.
必要时对域进行更新并调优数据源。
RT应用程序的设计者通常会将作用域与指定任务关联在一起，以便有效调优。
Designers of RT applications typically associate scopes with specific tasks so they can be tuned effectively.
您将需要创建一个名为xd_receiver . htm的跨域通信通道文件并将其放在一个与这个回调url相关的目录内。
You will need to create a cross-domain communication channel file called xd_receiver.htm and place it in a directory relative to the callback URL.
请求操作的入站消息可能包含一个“webhook”域，如果客户端期待回调，该域的值是一个URI；
The inbound representation of the operation request MAY contain a "webhook" field, whose value is a URI where the client expects a callback.
请求操作的入站消息可能包含一个“webhook”域，如果客户端期待回调，该域的值是一个URI；
The inbound representation of the operation request MAY contain a "webhook" field, whose value is a URI where the client expects a callback.
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