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单词 projector
释义 pro·jec·tor
\prəˈjektə(r), prōˈ-\ noun
(-s)
Etymology: project (II) + -or
1.
 a. : one that plans a project
 b. : one that promotes a chimerical project : schemer
2. : one that projects: as
 a. : a device for projecting a beam of light
  < a searchlight projector >
 b. : an optical instrument for projecting an image upon a surface (as a screen) by means of the transmission of light through a transparent slide or film or the reflection of light from an opaque object (as a photograph or postcard)
 c. : a machine for projecting and showing motion pictures on a screen — compare sound projector
 d. : a smooth bore weapon usually used for launching grenades or pyrotechnic signals
3. : a projection line (as from an object to a plane of projection) — used especially in mechanical drawing
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更新时间:2025/3/17 17:10:58