The developments and present situation of magneto - optical materials rare earth ( RE ) iron garnets, were reviewed.本文以稀土铁石榴石为主,综述了 磁光材料 的发展和研究现状 、 着重介绍了在光通信器件中的应用.Their magneto mechanical coupling behavior is systematic...
He could no longer hold back convulsive laughter.他再也忍不住，前俯后仰地大笑起来。She kept trying to hold back her tears.她一直在试图抑制住眼泪。She closed her eyes tightly in a vain attempt to hold back the tears.她紧闭双眼，却无法忍住眼泪。...
他的喉头哽住了, 只是用手轻抚着玛丽的头发.His throat was full to choking. He gently stroked her hair.索菲娅喉咙哽住了，说不出话来。Sofia's throat had tightened and she couldn't speak.他想说什么, 但哽住了, 什么话都说不出来.He tried to say something, but gulped, a...