color-bar code
常见例句
- In addition, they depend on an array of specialty devices, such as audio book-readers, color readers, navigation tools, raised Braille labels, special bar-code scanners, and large-buttoned, voice-enabled MP3 players which are prohibitively expensive.
ENGADGET: Qualcomm develops eyes-free smartphone for the blind and visually impaired, calls it Ray 返回 color-bar code