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overhead projector

/ˈəʊvəhed prəˈdʒɛktə/

翻译: 一种光学投影设备,将透明胶片上的内容放大投射到屏幕或墙壁上,广泛用于教学和演示,在数字投影仪普及前十分常见。

1 个条目

phrase

/ˈəʊvəhed prəˈdʒɛktə/B1formaltechnical已废弃
  • zh一种光学投影设备,将透明胶片上的内容放大投射到屏幕或墙壁上,广泛用于教学和演示,在数字投影仪普及前十分常见。

A device that projects an enlarged image of a transparent sheet onto a screen or wall, commonly used in classrooms and presentations before the widespread adoption of digital projectors.

  1. Presentation deviceB1formal

    A device that projects an image onto a screen or wall, typically used for displaying transparencies or slides in a classroom or meeting.

    zh投影仪

    • The teacher used an overhead projector to show the diagram.
    • During the presentation, he placed a transparency on the overhead projector.
    • Overhead projectors have largely been replaced by digital projectors.