This paper analyses the physical constant constructing by dimensional method and introduces the important mean of dimension of quantity in physical constant constructing.
采用量纲的方法分析物理常数的构造，讨论了物理量的量纲在物理常数构造中的重要意义。
This may require a compromise on the quantity dimension of its growth outcome.
这可能需要在增长规模上做出妥协。
Extracting the primary components of data is to decrease the dimension of the data in order to decrease the quantity of calculation.
数据的主成分提取是为了降低数据集的维数，减少计算量。
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