One source may be a primary reference while the other source utilizes the data.
一个源可能是一个主引用，而其他源利用它的数据。
And, of course, the information Centers remain the primary source for reference information and task-oriented product documentation.
当然，信息中心仍然是参考信息和面向任务的产品文档的主要来源。
Frequency or time is derived from the traffic interfaces except in nodes where a primary reference frequency or time source is provided.
除了在一些节点中提供了主要参考频率或者时间源之外，频率或定时均可从流通接口中获得。
Frequency or time is derived from the traffic interfaces except in nodes where a primary reference frequency or time source is provided.
除了在一些节点中提供了主要参考频率或者时间源之外，频率或定时均可从流通接口中获得。
应用推荐