Radon
Radon nghĩa là họ Radon
Các nghĩa
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họ Radon
A surname from German.
How much radon is there?
Several measurements show high radon levels in this area.
Helium, neon, argon, krypton, xenon and radon are noble gases.
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Johann Radon (1887-1956), nhà toán học Áo
Johann Radon (1887-1956), an Austrian mathematician with results in measure theory, functional analysis and geometry.