スライド映えい写しゃ機き

noun

slide projector

A device that projects photographic slides onto a screen. Common in educational and presentation settings before digital projectors became widespread.

• 昔むかしの授じゅ業ぎょうでは、スライド映えい写しゃ機きを使つかって写しゃ真しんを見みせていた。

  In old classes, they used a slide projector to show photos.