例句
英语六级真题
  • At least the slides were good, that is, until the bulb in the projector blew, and she had to finish the talk with no illustrations.
    2017年12月六级真题(第二套)听力 Section A
柯林斯高阶英汉双解学习词典释义
英汉词典释义
英英词典释义
  • Noun
    1. an optical device for projecting a beam of light
    2. an optical instrument that projects an enlarged image onto a screen
行业词典
  • 机械: 投影仪;以精确的放大倍率将物体放大投影在投影屏上测定物体形状、尺寸的仪器。;
    测绘: 投影器;由投影镜箱、支架和照明器组成,用于反光缩小或投影转绘,或用于多倍仪进行空中三角测量和测图的摄影测量光学投影装置。;
    物理学: 投影仪;
    电工: 散光灯;