| 释义 |
- See also
{{unreferenced|date=June 2018}}In surveying, a pole is bar made of wood or metal and normally held vertical, upon which different instruments can be mounted: a prism, a GPS device, etc. It may be manufactured with a predetermined length (e.g., 2 meters) or may be graduated for different heights or stages. See also - Leveling staff
- Surveying rod
{{civil-engineering-stub}} 1 : Surveying instruments |