sample n times 采样n次
pattern n sample 型式样品 ; 款式样
margin n sample 边距示例
n-dimension sample space n维样本空间
Singlechip AT89C52 was adopted by intelligent real available value voltage-monitoring apparatus to sample N times for the electrical network voltage between equal spaces in one cycle.
智能型真有效值电压监测仪,采用AT89C52单片机,在一个周期内对电网电压等间距采样N次。
If you have a sample with n observations, it's the summation I = 1 to n of xi/n--that's the average.
如果你有n个观测值,对Xi从i=1到n求和再除以n
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