与之形成鲜明对比，Linux内核调用图——不同程序代码之间的交互网络——看起来几乎像一个倒置的金字塔。

In stark contrast, the Linux kernel call graph - the network of interactions between different pieces of program code - looks almost like an inverted pyramid.

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你可以将这些服务设计成合成的应用程序并且通过标准协议来调用它们，如下面的图2所示。

You can choreograph these services into composite applications and invoke them through standard protocols, as shown in Figure 2 below.

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从数据处理程序(图2)和自定义中介原语(图3)调用了同样的方法。

The same method is invoked from the data handler (Figure 2) and from the custom mediation primitive (Figure 3).

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