其中每个关系在图1中都用一个黑色实线箭头表示。

Each is shown with a solid black arrow in figure 1.

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实线箭头将代理连接到它们在其中写入或读取的消息块。

Solid arrows connect the agents to the message blocks that they write to or read from.

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但是在本示例中，联系方式表是主表，DSLink3的实线箭头表明了这一点。

But in this sample, the contact table is the main one, indicated by the solid arrow DSLink3.

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