每一个组件都是一种算数指令，诸如加、减、乘、余弦、正弦。

Each module was an arithmetical command such as add, subtract, multiply, cosine, sine.

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例如，BurgerDome应用程序的大多数任务根本没有绑定到显示，而且构建一个Tapestry组件去给汉堡加芥茉没有太大意义。

For example, most of the tasks for the BurgerDome app aren't tied to display at all, and building a Tapestry component to, say, add mustard to a burger doesn't make a lot of sense.

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