The maturity model matures from decentralization of project assignments at the lower level to the close loop at the higher level after undergoing through centralization processes in the middle stages.

成熟度模型是这样逐步成熟起来的：由较低层的项目分配向下，在经过中间阶段的集中过程之后，到较高层的封闭循环。

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In this model, called Pipelining, the main thread is used to loop through the results as they are produced by the other threads.

在这个被称为“并行管道”的模型下，主线程将会在另一个线程产出结果的同时进行循环处理。

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The second loop iterates through all relationships in the Active Record model and renders the appropriate partial for each relationship.

第二个循环在活动目录模型中的所有关系上迭代，并呈现每个关系的适当部分。

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American Express says it is uniquely positioned to offer the service thanks to its "closed-loop" business model in which it acts as card issuer, merchant acquirer and payment processing operator.

BBC: Foursquare and Amex join forces in UK to offer discounts

The gravity-based system responded as it was designed to, circulating water and steam in a continuous loop to keep the scale-model reactor at a safe temperature automatically.

CNN: Today/Tomorrow - Helping nuclear plants keep their cool

There are many areas of overlap between biomimicry and "cradle-to-cradle" particularly in the way that ecosystems present a great model of closed loop systems in which any waste from one organism becomes the nutrient for something else.

CNN: STORY HIGHLIGHTS