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helium coolant
helium-cooled parametric amplifier
helium-cooled reactor
helium dating
helium detector
helium dilution analyser
helium diving bell
helium family element
helium film
helium flash
helium fuel tank pressurization
helium gas
helium injection
helium lamp
helium leak detector
helium-like ion
helium liquefier
helium magnetometer
helium maser
helium mass spectrometer leak detector
helium-mercury direct nuclear laser
helium method
helium-neon gas laser
helium-neon laser
helium-neon maser
科学参考收录了1248194条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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