A measure of the induced voltage in a circuit caused by a magnetic flux and equal to the flux times the number of turns in the coil that surrounds it.
碰撞，匝链电路中由于磁通量而造成电伏减少的单位，等于穿过一载流线圈的磁通量与线圈匝数之积
The ratio of luminous flux at a specific wavelength to the radiant flux at the same wavelength.
发光效率一定波长的光量对同样波长的辐射光量的比例
An instrument for measuring a property of light, especially luminous intensity or flux.
光度计用来测量光的性质、尤其是光的强度和通量的仪器
