| 释义 |
A hologram is a three-dimensional photographic image created by laser beams.全息图是由激光束制作产生的三维摄影图像。Researchers realised that a tunable laser beam might be useful in surgery.研究人员意识到，可调谐激光束也许可以用在外科手术中。The dye is activated when a laser is shone into the affected eye.当激光束射入病眼时，染料便被激活了。The cancer cells are burnt out using a laser beam.用激光束烧死癌细胞。A scanner deflects the laser beam in horizontal and vertical directions.扫描仪在水平和垂直方向上使激光束转变方向。 |