• 2022-06-29 问题

    水晶的折射率和双折射率为() A: 1.542~1.5500.008 B: 1.544~1.5530.009 C: 1.630~1.6360.006 D: 1.573~1.5820.009

    水晶的折射率和双折射率为() A: 1.542~1.5500.008 B: 1.544~1.5530.009 C: 1.630~1.6360.006 D: 1.573~1.5820.009

  • 2022-10-24 问题

    堇青石 (Iolite)的折射率是() A: 1.675~1.701 (+0.029,-0.010) 点测为1.68 B: 2.616~2.903 C: 1.542~1.551 (+0.045,-0.011) D: 1.716~1.731 (±O.004)

    堇青石 (Iolite)的折射率是() A: 1.675~1.701 (+0.029,-0.010) 点测为1.68 B: 2.616~2.903 C: 1.542~1.551 (+0.045,-0.011) D: 1.716~1.731 (±O.004)

  • 1