The glacial system is governed by two basic climatic variables: precipitation and temperature.
冰川系统由两个基本的气候变量控制：降水和温度。
This is a trivial example and focuses on two simple bottlenecks, but it highlights the basic advantages of having access to system performance information.
虽然这是一个很小的示例，侧重的也只是两个简单的瓶颈，但是它突出了访问系统性能信息的基本优势。
Meanwhile, the operating system and one or two other basic pieces of software are phoning home, and lockdown technologies are policing your computing.
这就是说，操作系统和一或两个基本程序像电话屋一样，并且锁定技术管制了你的电脑。
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