helium- counter的意思|示意
氦-计数器
helium- counter的网络常见释义
he计数管 ~8he计数管
helium- counter相关短语
1、 helium counter 氦计数管
2、 helium counter tube 氦计数管 ; 氦计数器管
3、 helium-3 counter 氦3计数器
helium- counter相关例句
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。