| 释义 |
〔scan〕A single sweep of the beam of electrons across a television screen.扫掠：电子束在电视屏幕上的扫动〔scan〕To move a finely focused beam of light or electrons in a systematic pattern over (a surface) in order to reproduce or sense and subsequently transmit an image.扫描：以系统的方式移动高度集中的光或电子束使之掠过（一个表面），目的是再现或感知并达到传递图象〔modulate〕To vary (electron velocity) in an electron beam.调制：在一个电子束中改变（电子速率） |