The current system requires constant sustainment intervention to maintain operations and does not address the growing population of small and micro satellites in orbit.

目前系统需要不断操作干预以保持运作，并且没有解决日益增长的轨道上小型和微型卫星的数量。

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Instead, defending a system requires constant vigilance to create, find, apply, test, and adjust any number of individual measures.

相反，要想保护系统，必须时刻保持警惕，不断创建、寻找、应用、测试和调整许多安全措施。

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And without a simple system, constant communication to spread knowledge, and feedback to steer with, it's tough to be brave.

而如果没有简单的系统、没有不断的交流来扩展知识以及没有掌握方向所依赖的反馈，勇敢也就失去了依靠。

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so I'm heating up the system in this path here, and then to connect the 2 endpoints here, a constant temperature path.

需要再用，一个等温过程，这两个状态。

麻省理工公开课 - 热力学与动力学课程节选

I mean maybe up the street we whisper, but here we know it. And, so here is a different kind of system where we have a constant external pressure.

或许在街上你们低声细语，但在这里不应该这样，这是另一个系统,我们有一个恒定的外压强。

麻省理工公开课 - 热力学与动力学课程节选

The gold standard was a success in the sense that the price of gold stayed constant because that's what the whole system was designed to do.

金本位制度是一个成功,因为金子的价值保持不变，并且这也是,人们当初对这设计整个系统的意图所在。

耶鲁公开课 - 金融市场课程节选

We need to move away from this system dominated and characterized by the measure of time and other inputs in which we hold time as a constant for everyone and learning is variable to a competency-based learning system powered by digital learning in which time becomes the variable and student learning the constant and the system is based on outcomes.

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Microsoft tried to argue that its Windows operating system was under constant threat and could be made obsolete at any moment.

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The markets that they generate are more like a turbulent river or the weather system, subject to constant storms and seizures of all sizes.

ECONOMIST: Economics focus