非实用需求描述门户系统的属性。

Non-functional requirements describe the attributes of the portal system.

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理想apm系统的属性。

The ideal APM system's attributes.

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探究应用程序性能管理(apm)系统的属性。

Explores attributes of application performance management (APM) systems.

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So, these on-changing properties that describe the state of the equilibrium state of the system are called state variables.

这些描述,系统平衡态的,变化的属性,就叫做状态变量。

麻省理工公开课 - 热力学与动力学课程节选

And so the set of properties that describes system equilibrium doesn't change.

这些描述系统的属性,平衡是不变的。

麻省理工公开课 - 热力学与动力学课程节选