... helium cooled reactor 氦冷却反应堆 helium cooling 氦气冷却 helium counter 氦计数管 ...
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helium counter tube [电子] 氦计数管 ; 氦计数器管
helium- counter he计数管
helium-3 counter 氦3计数器
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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。
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