Elasticity in a system or component of a system (I'll use software as an example, since I work with IBM WebSphere eXtreme Scale every day) implies three specific degrees of freedom

系统或系统组件中的弹性（我将以软件为例，因为我每天都与 IBM WebSphere eXtreme Scale 打交道）暗示三种特定的自由程度

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This paper takes the Microcomputer Interlocking Safety Software as an example and illustrates a method how to classify the inputs of Safety Software in high speed railway.

以微机联锁安全软件测试为例，提出了划分高速铁路微机控制铁路信号设备安全软件输入空间的一种方法。

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