The cardinal number, represented by the symbol, designating the first such unit in a series.
基数，用符号表示，代表一系列中这样的单元中的第一个。
Linear guide unit SBR Series a support rail and a combination of axes.
直线导轨单元t BR系列一个支撑轨和一根轴的组合。
Thus, testing unit root in seasonal time series is necessary.
这样对季节性时间序列进行单位根检验是很必要的。
Thus, testing unit root in seasonal time series is necessary.
这样对季节性时间序列进行单位根检验是很必要的。
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