主法向量 zhǔ fǎ xiàng liàng

DEFINITIONS

  1. principal normal vector (to a space curve)

CHARACTERS

主 zhǔ
HSK 3
master, chief owner; host; lord
法 fǎ
HSK 3
law, rule, regulation, statute; France, French
向 xiàng
HSK 3
toward, direction, trend
量 liàng
HSK 4
measure, quantity, capacity