在图中的每一个箭头(共三个)中有一个配置点，这个点可限制进入应用程序并接着进入后端资源的入站请求。

At each one of the three arrows in the figure is a configuration point gating the incoming requests into the application and subsequently to the backend resource.

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“共晶”是指一种元素或者化合物的组合，它可以在比任一成分单独时的凝固点更低的温度下保持液态。

"Eutectic" refers to a mix of elements or compound that remains liquid at lower temperature than either of its components does alone.

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如果我们有这样子特殊的A和B的混合物，在这个点，我们得到了所谓的共沸混合物。

So if I have this special mixture here, of A and B, at this point here, I form what's called an azeotrope.

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