hibernation
hickey
hidden
hidden-surface
hide
hiding
hierarchical
hierarchy
hi-fi
HI-GAS
  high
high-absorbency
high-absorbing
high-acceleration
high-activity
high-alkali
high-alloy
high-altitude
high-alumina
high-and-low
high-angle

    high aperture optics

     светосильная оптика

     светосильная оптическая система