Ordnance Survey
/ˌɔːdnəns ˈsɜːveɪ/
/ˌɔːrdnəns ˈsɜːrveɪ/
(abbreviation OS)
- the British government organization responsible for making maps of Britain. These are available in a range of different scales, some of which are very detailed. They are especially popular with people who enjoy walking in the countryside. The OS was started in 1791 to make maps for the army. It also produces historical maps.
军械调查：负责制作英国地图的英国政府组织。这些有各种不同的规模，其中一些非常详细。他们特别喜欢在乡下散步的人。该操作系统始建于1791年，为军队绘制地图。它还会生成历史地图。