1) Military: sy
2) Agriculture: s
3) Abbreviation: surv, svy
4) Oil: sur
5) Drilling: SUR (usually refers to a magnetic survey done to determine position of hole relative to the surface location), SURV (usually refers to a magnetic survey done to determine position of hole relative to the surface location)
Универсальный русско-английский словарь. Академик.ру. 2011.