微分幾何 wēi fēn jǐ hé

DEFINITIONS

  1. differential geometry

CHARACTERS

微 wēi
HSK 4
small, prefix micro-, trifling
分 fēn
HSK 1
divide; small unit of time etc.
幾 jǐ how many? how much?; a few, some
何 hé
HSK 4
what, why, where, which, how