Light particles - called photons - carry a packet of energy that depends on their frequency.
光束粒子——称为光子——携带的能量取决于它们的频率。
Because light has a very high frequency, it can carry a lot more data than microwaves or radio waves, which have much lower frequencies.
因为光的频率非常高，可以比频率低很多的微波或无线电波承载更多的数据。
Using finite difference method, we carry out the numerical calculation of the electric field induced by a low frequency magnetic field in a two dimensional stratified biological medium.
采用有限差分法对低频磁场在二维分层生物媒质中诱发的电场进行了数值计算。
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