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datum    音标拼音: [d'ætəm] [d'etəm]
n. 材料,资料,已知数

材料,资料,已知数

datum
资料 D

datum
资料

datum
n 1: an item of factual information derived from measurement or
research [synonym: {datum}, {data point}]

Datum \Da"tum\, n.; pl. {Data}. [L. See 2d {Date}.]
1. Something given or admitted; a fact or principle granted;
that upon which an inference or an argument is based; --
used chiefly in the plural.
[1913 Webster]

Any writer, therefore, who . . . furnishes us with
data sufficient to determine the time in which he
wrote. --Priestley.
[1913 Webster]

2. a single piece of information; a fact; especially a piece
of information obtained by observation or experiment; --
used mostly in the plural.
[PJC]

3. pl. (Math.) The quantities or relations which are assumed
to be given in any problem.
[1913 Webster]

4. (Surveying) a point, line, or level surface used as a
reference in measuring elevations. --RHUD
[PJC]

{Datum line} (Surv.), the horizontal or base line, from which
the heights of points are reckoned or measured, as in the
plan of a railway, etc.
[1913 Webster]

146 Moby Thesaurus words for "datum":
absolute fact, accepted fact, account, acquaintance, actual fact,
admitted fact, announcement, article, aspect, axiom, bald fact,
bare fact, basis for belief, blue book, body of evidence, briefing,
brutal fact, bulletin, case, chain of evidence, circumstance, clue,
cold fact, communication, communique, conceded fact, corpus, count,
data, demonstrable fact, detail, directory, dispatch,
documentation, element, empirical fact, enlightenment,
established fact, evidence, exhibit, experience, expertise, facet,
fact, fact of experience, factor, facts, factual base,
factual information, familiarity, familiarization, gen,
general information, given fact, grounds, grounds for belief,
guidebook, handout, hard fact, hard information, incidental,
incidental information, indication, indisputable fact,
inescapable fact, info, information, instance, instruction,
intelligence, intimacy, item, item of evidence, ken, know-how,
knowing, knowledge, light, manifestation, mark, material grounds,
matter, matter of fact, mention, message, minor detail, minutia,
minutiae, muniments, mute witness, naked fact, not guesswork,
not opinion, notice, notification, particular, piece of evidence,
plain, point, positive fact, postulate, practical knowledge,
premises, presentation, private knowledge, privity,
promotional material, proof, provable fact, publication, publicity,
ratio cognoscendi, reason to believe, regard, release,
relevant fact, report, respect, salient fact, self-evident fact,
self-knowledge, sidelight, sign, significant fact, simple fact,
sober fact, statement, stubborn fact, symptom, technic, technics,
technique, the case, the dope, the goods, the know,
the nitty-gritty, the scoop, thing, token, transmission,
undeniable fact, well-known fact, white book, white paper, word


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  • DATUM Definition Meaning - Merriam-Webster
    The meaning of DATUM is something given or admitted especially as a basis for reasoning or inference How to use datum in a sentence Is data singular or plural?: Usage Guide
  • Datum reference - Wikipedia
    In engineering and drafting, a datum is a reference point, surface, or axis on an object against which measurements are made These are then referred to by one or more 'datum references' which indicate measurements that should be made with respect to the corresponding datum feature
  • Datums and Reference Frames | Datums | National Geodetic Survey
    A geodetic datum or reference frame is an abstract coordinate system with a reference surface (such as sea level) that serves to provide known locations to begin surveys and create maps
  • DATUM | English meaning - Cambridge Dictionary
    A common datum point is used throughout all the experiments as a reference point
  • DATUM Definition Meaning | Dictionary. com
    Datum definition: a single piece of information, as a fact, statistic, or code; an item of data See examples of DATUM used in a sentence
  • DATUM definition and meaning | Collins English Dictionary
    a real or assumed thing, used as a basis for calculations or measurements, as a level (also datum plane) from which elevations and depths are measured in surveying
  • Datum - definition of datum by The Free Dictionary
    meter reading, reading, indication - a datum about some physical state that is presented to a user by a meter or similar instrument; "he could not believe the meter reading"; "the barometer gave clear indications of an approaching storm"
  • datum - Wiktionary, the free dictionary
    datum (plural (senses 1–3) data or (senses 1 and 4–5) datums) (dated) Singular of data; a single recorded observation (philosophy) A fact known from direct observation (philosophy) A premise from which conclusions are drawn
  • What Are Datums? A guide to all their types and applications.
    What is the difference between datum and datum feature in engineering drawing? A datum is an idealized geometric reference point, line or plane However, a datum feature is the physical part of the component which defines this reference
  • What are Datums: Definition, Types and Uses - dekmake. com
    The definition of datum, as given in ASME Y14 5 (1994), states that “A theoretically exact axis, plane, or point which is derived from the geometric counterpart of a certain datum feature The position of the features in a component establishes datum as a reference ”





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