through-the-lens auto focusing
auto-arc suppression coil(auto-ASC)
auto-Backlund transformation auto-BT
auto-docking and auto-separate
Auto-docking and Auto-separating
auto-punch hardness tester(auto-punch)
auto-thermic reaction auto-thermal reaction
three colors’ auto-focusing and auto-alignment
corneal lens（lenses） lens
object lens objective lens
objective lens object lens
plane-concave lens (=plano-concave lens)