The standard deviation is the square root of the variance.
标准差是方差的平方根。
The positive square root of the variance is called the standard deviation.
方差的正的平方根叫做标准差。
The existing 1,000 square meter factory standard four plants.
工厂现有四栋一千平米的标准厂房。
The existing 1,000 square meter factory standard four plants.
工厂现有四栋一千平米的标准厂房。
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