二次曲面 èr cì qū miàn

DEFINITIONS

  1. quadric surface (geometry)

CHARACTERS

二 èr
HSK 1
two; twice
次 cì
HSK 2
order, sequence; next
曲 qū
HSK 6
crooked, bent; wrong, false
面 miàn
HSK 1
face; surface; plane; side, dimension