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helium-cooled parametric amplifier
meaning in English
氦冷却参量放大器
氦冷致参量放大器
Related Words
helium leakage
cosmogenic helium
helium maser
helium age
helium index
helium turbine
helium method
superheated helium
atmospheric helium
helium diving
helium-caesium laser
helium-cesium gas laser
helium-cooled reactor
helium-injection rocket
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