但是不能完全相信这些数值，因为它们仅表示进程耗费在CPU上的时间，而不是其真正的执行时间(也称为时钟时间)。
These Numbers must be taken with a grain of salt, because they only represent the time the process spent on the CPU, not the real time it took to execute (also known as the wall clock time).
例如，考虑某个人的年龄，一个业务对象可能会将年龄表示为一个字符串，而另一个业务对象则会表示为一个整数值。
For example, consider a person's age, one business object might express age as a string and another as an int.
负向相关表示二者移动方向相反，而数值越小，相反的趋势越明显。
Conversely, a negative correlation represents opposite movements with a smaller (more negative) number representing a stronger relationship between the opposite movements.
负向相关表示二者移动方向相反，而数值越小，相反的趋势越明显。
Conversely, a negative correlation represents opposite movements with a smaller (more negative) number representing a stronger relationship between the opposite movements.
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