The inference and modeling process can be thought of as an operation stack.

可以将推理和建模流程看作一个操作栈。

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From a modeling standpoint, the resulting challenge is how well-designed operation, service, and process abstractions can be characterized and constructed systematically.

从建模的观点来看，由此带来的挑战是如何描述设计良好的操作、服务和流程抽象的特征以及如何系统地构造它们。

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Before the procedure, the engineers and technicians had trained with test runs, computer modeling and a mock-up of the instrument package. This is a critical mission operation.

在这个程序之前，工程师和技术人员已经进行了测试运行、计算机建模培训和在一个仪器包模型上操作的培训。这是一个关键的任务操作。

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These data can also be used to estimate dynamic modeling parameters for planning and operation.

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With her megawatt smile, sandy blonde hair (dyed) and hourglass figure, Klum fiercely guards her image: Her looks are the foundation of a modeling, media and retail operation--two hit television shows and a slew of branded merchandise.

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