The chemical composition of primary cosmic rays in the energy region aro-und 10~(14) eV is studied by using Monte-Carlo simulation.是什么意思_The chemical composition of primary cosmic rays in the energy region aro-und 10~(14) eV is studied by using Monte-Carlo simulation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句