Taivo A Taiwan Mandarin dictionary

主法向量

zhǔfǎxiàngliàng

ㄓㄨˇ ㄈㄚˇ ㄒㄧㄤˋ ㄌㄧㄤˋ

  1. 1principal normal vector (to a space curve)

Keep 主法向量 and it comes back until you know it.

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