半数必中界 はんすうひっちゅうかい circular error probability (measure of missile accuracy); circular error probable; CEP n Advanced ➥
必置 ひっち mandatory requirements (e.g. qualifications, administrative structures, etc.) n adj-no Advanced ➥
必置規制 ひっちきせい government rules on structure, staffing, etc. of local bodies (e.g. police force) n Advanced ➥