datum
의미: A single piece of information used as a basis for reasoning, discussion, or calculation, or a fixed reference point against which measurements or positions are taken.
Datum is the singular form of 'data,' though in modern usage 'data' is commonly treated as both singular and plural. In surveying and engineering, a datum is a reference level — Ordnance Datum in Britain is mean sea level at Newlyn, Cornwall, from which all heights are measured. In cartography, a geodetic datum defines the coordinate system used for mapping. The word retains its formal, precise flavour and is most at home in academic, scientific, and engineering contexts.
예문
- All elevations on the Ordnance Survey maps are measured relative to the Ordnance Datum at Newlyn in Cornwall. 陆地测量局地图上的所有高程均以康沃尔郡纽林的陆地测量基准为参照测量。Todas las altitudes de los mapas del Ordnance Survey se miden respecto al Ordnance Datum en Newlyn, Cornualles.陸地測量部の地図上のすべての標高は、コーンウォール州ニューリンの測量基準点を基に測定されている。영국 육지측량부 지도의 모든 표고는 콘월주 뉴린의 측량 기준점을 기준으로 측정된다.
- Each datum in the experimental dataset was checked for outliers before the statistical analysis was performed. 实验数据集中的每个数据点在进行统计分析之前都经过了异常值检查。Cada dato del conjunto experimental fue verificado en busca de valores atípicos antes de realizar el análisis estadístico.実験データセットの各データムは、統計分析の前に外れ値のチェックが行われた。실험 데이터 세트의 각 데이터 항목은 통계 분석을 수행하기 전에 이상값 여부를 확인했다.
- The engineering drawings specified the front face of the housing as the primary datum for all dimensional tolerances. 工程图纸指定外壳前端面作为所有尺寸公差的主要基准。Los planos de ingeniería especificaban la cara frontal de la carcasa como datum primario para todas las tolerancias dimensionales.工学図面では、すべての寸法公差の主要基準面としてハウジングの前面が指定されていた。설계 도면에서는 모든 치수 공차의 1차 기준면으로 하우징의 전면이 지정되었다.
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사용 가이드
맥락: scientific, academic, professional
어조: neutral
기원과 역사
From Latin datum (something given), the neuter past participle of dare (to give). Entered English in the 18th century as a philosophical term; the surveying and engineering senses developed in the 19th century.
문화적 배경
Era: Modern
Generation: All ages
Social background: Universal
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