防日光係數

防日光系数
fángrìguāngxìshù

sun protection factor; SPF

Wiktionary

Entry Composition

1 防 fáng
  1. to protect
  2. to defend
  3. to guard against
  4. to prevent
2 日光 rìguāng sunlight
3 係數 xìshù
  1. coefficient
  2. factor
  3. modulus
  4. ratio