半はん数すう必ひっ中ちゅう界かいはんすうひっちゅうかいMeanings1nouncircular error probable; CEPTechnical term used in ballistics and missile accuracy measurement. Refers to the radius of a circle within which half of the projectiles are expected to land.このミサイルの半はん数すう必ひっ中ちゅう界かいは約やく50メートルと推すい定ていされている
