折射指数计的英文

• indexometer

• 折射:    refringence; refingency; ana ...
• 指数:    index number; index
• 计:    count; compute; calculate; n ...
• 位折射指数:    potential refractive lindex
• 折射指数:    index of refraction; refracted index; refraction index; refractive exponent; refractive index; ri