| 单词 | ordnance |
| 释义 | ordnance /ördˈnəns/noun
ORIGIN: ordinance ordnance datum noun The standard sea-level of the Ordnance Survey, now mean sea-level at Newlyn, Cornwall Ordnance Survey noun The preparation of maps of Great Britain and Northern Ireland by the Ordnance Survey (Department) (until 1889 under the Board of Ordnance) |
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