SOLID HELIUM
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BTSOLID STATE OF SUBSTANCE (CHEMISTRY)
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BTHELIUM (CHEMICAL ELEMENTS)
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UDC546.291-15
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Descriptor GERFESTES HELIUM
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Descriptor ENGSOLID HELIUM
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Descriptor FREHÉLIUM SOLIDE
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Variant GERHELIUM/FESTES HELIUM
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Variant ENGHELIUM/SOLID HELIUM