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straightedge

/streyt-ej/US // ˈstreɪtˌɛdʒ //UK // (ˈstreɪtˌɛdʒ) //

直尺,直线型,直线,直角尺

Related Words

Definitions

n.名词 noun
  1. 1
    • : a bar or strip of wood, plastic, or metal having at least one long edge of sufficiently reliable straightness for use in drawing or testing straight lines, plane surfaces, etc.

Synonyms & Antonyms

Examples

  • The first requisite for this is a straightedge of iron or brass, as true as possible.

  • It is necessary also that the straightedge be applied frequently.

  • The cutter is guided along the straightedge as shown in Fig. 1.

  • The straightedge and the compasses are the only two drawing instruments recognized in elementary geometry.

  • In other words, the trisection of any angle, by the use of the straightedge and compasses alone, is impossible.