It will save considerable machining time to use more than one tool in one machine to perform several machine operations either in sequence or simultaneously.

在一台机器上使用数种刀具来顺次或同时进行几项机器操作，将节省大量加工时间。

《新英汉大辞典》

The final block of code again makes use of this sequence and generates an "itinerary" of which scenes the person had already visited to get to where they are at any given time.

最后一个代码块再次使用这个序列，生成用户已经访问过的场面的 “路线”，从而查看用户在过去任何时间点所处的路线。

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The queue manager will then continue to use the same group identifier and increment the sequence number each time.

队列管理器将随后继续使用相同的组标识符，并在每次递增序列号。

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