云雾径迹

雲霧徑跡
yúnwùjìngjì
cloud track (trace of ionizing particle in cloud chamber)

CEDICT

Entry Composition

1 云雾 yúnwù clouds and mist
2 径迹 jìngjì
  1. track
  2. trajectory
  3. path
  4. way
  5. means
  6. diameter
  7. directly