激光技术第一次走进日常生活，是美国超市使用发出红色氦氖激光的条形码扫描枪实现收款自动化。
Lasers became an everyday technology when us supermarkets decided to automate their checkouts using barcodes that could be read by a red helium-neon laser built into the counter.
激光技术第一次走进日常生活，是美国超市使用发出红色氦氖激光的条形码扫描枪实现收款自动化。
Lasers became an everyday technology when us supermarkets decided to automate their checkouts using barcodes that could be read by a red helium-neon laser built into the counter.
应用推荐