切向量

qiēxiàngliàng
tangent vector

CEDICT

Entry Composition

1 切向 qiēxiàng tangent direction
2 量 liàng
  1. capacity
  2. quantity
  3. amount
  4. to estimate
  5. abbr. for 量词 liàngcí, classifier (in Chinese grammar)
  6. measure word