流将开始处理消息，等待一定时间（例如，60 秒），然后在此时间段结束后继续处理消息。
The flow would start processing a message, wait for a period of time (for example, 60 seconds) and then continue processing the message after that time period.
缺省的5秒间隔非常适合用于测试新的流，因为这减少了重复运行测试所花的时间。
The default of 5 seconds is good for testing new flows because it reduces the time taken to repeat a test run.
如果要提供清晰的视频和纯净的声音，视频的每个数据流需要一秒一兆字节的带宽，延迟时间要小于60毫秒。
Each stream being watched will require a Megabyte a second of bandwidth and a latency of less than 60ms if it is to deliver crisp, pin-sharp video and pristine sound.
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