helium counter tube
常见例句
- MINIMAM UTILITIES: Air-cooled small X-ray tube and gas filled proportional counter have been employed, and the only requirements are AC Power Source and Helium Gas.
使用简单：仪器内置气体密封型比例计数管，只要接上电源和氦气（保护），就可以正常使用仪器。 返回 helium counter tube