The problems of running and creating multiple processes to handle a number of concurrent operations (for example, phone calls) are built into the language.

运行和创建多个进程来处理大量并行操作(例如，电话呼叫)的问题也内置于此语言之中。

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Based on this idea, let's look at the concept of a concurrent queue where push and pop operations come with timeouts.

根据这个概念，我们来看看如何给并发队列的添加和取出操作增加超时限制。

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With DB2 9.7, XML index creation allows concurrent write operations by default, just like the creation of relational indexes.

在DB 2 9.7中，与创建关系索引一样，xml索引创建操作在默认情况下允许并发的写操作。

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