第一，你需要知道如何设定采样率，或计算机每隔多长时间进行一次测量。
First, you need to figure out how to set the sampling rate, or how often your computer takes a measurement.
而假如，在采样问题或数字系统中常见这种情况，有些基础方程仅定义于，或仅能应用于离散的时间点上，这就导致了离散时间系统。
If, as in sampling or digital systems, some elemental equations are defined or used only at discrete points in time, a discrete-time system is the result.
因为数据存储量和测量过程之间的时间有关，因此数据存储量影响记录道数量或采样间隔，或二者皆受影响。
Depending on the time between trips, the amount of data storage may affect the number of channels recorded, the sample interval, or both.
用户可以切换或关闭功能样品，也可以选择时间段之后进行采样。
The user can switch the sample function on or off, and can also select the time period after which to perform the sampling.
欲提高频率分辨率，只有增加时间窗长度或增加采样点数，这又必然会增大计算量。
Though increasing the time window length or the sampling number can improve frequency resolution, yet the calculation will be cumbersome.
“调用关系树”视图还可以展开和突出显示消耗时间最多或采样频率最高的函数的执行路径。
The Call Tree view can also expand and highlight the execution path of a function that consumed the most time or was sampled most frequently.
“调用关系树”视图还可以展开和突出显示消耗时间最多或采样频率最高的函数的执行路径。
The Call Tree view can also expand and highlight the execution path of a function that consumed the most time or was sampled most frequently.
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