| 释义 |
unsurveyed area
unsurveyed areaAn area on a map or chart where both relief and planimetric data are unavailable. Such an area is usually labelled "unsurveyed." Or an area on a map or chart which shows little or no charted data because accurate information is limited or not available.unsurveyed area
unsurveyed area[¦ən·sər′vād ′er·ē·ə] (mapping) An area on a map or chart where both relief and planimetric data are unavailable, and which is usually labeled unsurveyed; or an area on a map or chart which shows little or no charted data because accurate information is limited or not available. |