The only difference is in the way that activities are performed.
惟一的差异是执行活动的方式不同。
The key here is that all network maintenance activities are performed at build time.
这里的关键在于，所有的网络维护活动均在构建时执行。
Failure to record activities at the time they are performed, and destruction of original records.
未能在活动实施时进行记录，未记录原始记录的销毁。
Failure to record activities at the time they are performed, and destruction of original records.
未能在活动实施时进行记录，未记录原始记录的销毁。
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