It will iterate over each element of the idx sequence, evaluate the expression, and add the result to the return sequence.

它将迭代id x序列中的每个元素，求得表达式的值，并将结果添加到这个返回序列。

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To fix this, you must declare an XML element containing an empty sequence and add a part to the message with this element. Listing 3 demonstrates how such an XML element can be declared.

为了纠正这个错误，必须声明一个包含空序列的xml元素，并用这个元素将一个部分添加到消息中。

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To this, add a sequence activity that will be the outermost structural element required in the Echo process.

为此，请添加一个sequence活动，它将成为回送流程所要求的最外层的结构元素。

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The Visualize menu, shown in Figure 6, allows you to add the selected element(s) to a new Sequence Diagram, Topic Diagram, or Class Diagram.

Visualize菜单，如图6所示，允许您将所选的元素添加到新的序列图、Topic 图，或类图中。

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The authors chose to add the AcksTo to the CreateSequence, since it would avoid the issues regarding the possible mutability of the wsa: from element from message to message within a Sequence.

编者选择添加acks To到CreateSequence，因为它可以避免在序列的消息与消息间的wsa：From的多种可能带来的各种问题。

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Now you can go ahead and add a sequence element to the process.

现在，您可以继续前进，向process添加sequence元素。

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Now you can go ahead and add a sequence element to the process.

现在，您可以继续前进，向process添加sequence元素。

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