This is a normal vector of the same length as n, well, up to sign.

这是与N长度相同的法向量，只是符号不定。

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Normal chromosome pairing between most species and n. Tabacum is rare.

大多数的种与红花间的正常染色配对是少见的。

youdao

R. stand tends to normal distribution. N.

人促更新趋于正态分布；

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R. stand tends to normal distribution. N.

人促更新趋于正态分布；

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