4 2He helium-4 4 2He helium-4 helium-4 helium-4 Helium-4 English helium-4 helium-4 helium-4 helium-4 4 2He helium-4 helium-4 4 He 4 2He helium-4 English helium-4 helium-4 4 2He 4 2He Helium-4 helium-4 Helium-4 Helium-4 4 2He helium-4 helium-4 helium-4 4 2He 4He helium-4 4He helium-4 English English He-4 4 2He Helium-4 English helium-4 4 2He helium-4 helium-4 Helium-4 Yo me referia al H4 4 2He 4 2He 4He helium-4 4 2He helium-4 4 2He 4 2He helium-4 Helium-4 4 2He helium-4 4 2He helium-4 4He helium-4 4 2He Helium-4 Helium-4 4He Helium-4 helium-4 4 2He helium-4 4 2He 4He Helium-4 Helium-4 helium-4 helium-4 (He-4) Yo me referia al H4 helium-4 4 2He helium-4 Helium-4 helium-4 helium-4 4He 4 2He Helium-4 4 2He helium-4 helium-4 English helium-4 helium-4 Yo me referia al H4 helium-4 4 2He English helium-4 4 2He 维基百科：氦 Helium-4 Yo me referia al H4