A rubber band can be elongated to several times of its normal length.
橡皮带能拉长到平常长度的几倍。
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。
It can be a normal vector of any length you want to the surfaces.
它可以是曲面上想要的任意长度的法向量。
Objective To understand the Mandarin normal children average sentence length (MLU).
目的了解正常儿童普通话平均句子长度（MLU）。
Objective To understand the Mandarin normal children average sentence length (MLU).
目的了解正常儿童普通话平均句子长度（MLU）。
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