v Al = 5100 m / s , ρ Al = 2700 k g / c m 3 v_{\text{Al}}=5100~\mathrm{m/s},~\rho_{\text{Al}}=2700~\mathrm{kg/cm}^3 vAl=5100 m/s, ρAl=2700 kg/cm3.
確定! 回上一頁