seroma
发表于 2025-3-30 12:10:41
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占线
发表于 2025-3-30 15:00:09
referentially in this chapter starts at ~ 10. s after the ion’s transversal through the polymer. Any deposition of energy by an impinging ion onto a target occurs discretely because electronic excitation is restricted by quantized energy levels, and ionization is restricted by a certain potential he