An apparatus containing a source of light and a system of lenses for projecting on to a screen an enlargement of an image on a slide, film, or…
| 单词 | θ64889 |
| 释义 | the world > physical sensation > sight and vision > optical instruments > instruments for projecting image > [noun] > projector (2) projectora1884 An apparatus containing a source of light and a system of lenses for projecting on to a screen an enlargement of an image on a slide, film, or… overhead1974 = overhead projector n. at compounds. |
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