Data binding is not only more convenient for developers than working with a document model, it's also much more efficient in terms of both performance and memory use.

与使用文档模型相比，数据绑定为开发人员带来了更大的方便，同时，它在性能和内存使用方面的效率也更高。

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By controlling diffusion of exploratory messages and making use of cost function, the energy consumption can be more efficient in free space model.

采用自由空间模型，通过控制探测数据的扩散范围，引入路径代价函数实现能量的高效利用。

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Now we need to think about a model of the stock market And the model we're going to use is based on what's called the Efficient Market Hypothesis.

现在需要想一想一个股市的模型是怎样的，我们要用的模型是，基于有效率市场假说的。

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Now we need to think about a model of the stock market And the model we're going to use is based on what's called the Efficient Market Hypothesis.

现在需要想一想一个股市的模型是怎样的,我们要用的模型是,基于有效率市场假说的。

麻省理工公开课 - 计算机科学及编程导论课程节选