The EXTRACT function is a very efficient way to select a group of values, but if the expected result set is just a single object then you are better off using the CHOOSE function previously discussed.
EXTRACT函数是选择一组值的非常高效的方法，但是如果预期的结果集只是单一对象，那么最好使用前面介绍的choose函数。
According to this way, products designed that not only may educe measurable reliability of running, but also can acquire optimum result of the function parameters.
按照可靠性优化设计方法设计的产品，既能定量地回答产品在运行中的可靠性，又能使产品的功能参数获得优化解。
Use that realization to carry on contrast with DES calculate way experiment, according to experiment result carried on to encrypt function and encrypt an efficiency of total calculate way analysis.
用该实现与DES算法进行对比试验，根据实验结果进行了加密性能和加密效率的总体算法分析。
Use that realization to carry on contrast with DES calculate way experiment, according to experiment result carried on to encrypt function and encrypt an efficiency of total calculate way analysis.
用该实现与DES算法进行对比试验，根据实验结果进行了加密性能和加密效率的总体算法分析。
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