"cannon, artillery," 1540s, a clipped form of ordinance (q.v.) which was attested from late 14c. in the sense of "military materials, provisions of war;" a sense now obsolete but which led to those of "engines for discharging missiles" (early 15c.) and "branch of the military concerned with stores and materials" (late 15c.). The shorter word was established in these distinct senses by 17c. Ordnance survey (1833), official survey of Great Britain and Ireland, was undertaken by the government under the direction of the Master-General of the Ordnance (the natural choice, gunners being thoroughly trained in surveying ranges and distances).
实用例句
1. An Ordnance Survey grid reference gives the position of a place to within 100 metres.
全国地形测量局的地图坐标标示某地的位置精确到100米以內.
来自《简明英汉词典》
2. She worked in an ordnance factory during the war.
战争期间她在一家兵工厂工作.
来自辞典例句
3. Shoes and clothing for the army were scarce, ordnance supplies and drugs were scarcer.
军队很缺鞋和衣服, 武器供应和药品就更少了.
来自飘（部分）
4. With cargo projectile by the world , serious problem of unexploded ordnance arisen.
子母弹药的应用与发展带来了严重的未爆弹药问题.
来自互联网
5. All non - EOD explosive ordnance disposal personnel must evacuate immediately.