OCH | |
abbr. auto. | overhead camshaft |
abbr. avia. | Nacogdoches, Texas USA; obstacle clearance height |
abbr. avia. radio | obstacle clearance height |
abbr. el. | optical channel; outgoing channel |
tech. | octachlorocyclohexanone |
OCHS | |
abbr. lab.eq. | Ontario Child Health Study |
Och | |
abbr. earth.sc. | orchard |