corneal lens lens

auxiliary-adjacent auxiliary view

corneal lens（lenses） lens

Lens-to-lens interval

object lens objective lens

objective lens object lens

plane-concave lens (=plano-concave lens)

plane-convex lens (=plano lens)

short focal length lens (=short-focus lens)

variable focus lens vari-focus lens

vari-focus lens variable focus lens

de (得) as auxiliary verb

500 kV auxiliary transformer

6 kV auxiliary power

6 kV auxiliary power system

6kV auxiliary power

abrasion-proof auxiliary nozzle

absorber auxiliary

AC auxiliary drive