So it is not necessary to use a broad-band laser to guarantee excitation efficiency for an atom with hyperfine split levels.
因此，在这样激光功率条件下，为提高原子激发效率而增加激光谱线宽度的做法并不是必要的。
Split-band optical transmission system, optical transmission device, optical receiving device, and use of optical transmission based on above devices.
分频光学传输系统，和光学发送器件，光学接收器件，以及基于上述器件的光学传输的使用方法。
Victoria PoshBeckham has maintained the highest profile since the band split, helped by her superstar soccer-playing husband David and regular appearances at fashion shows and on tabloid front pages.
组合解散后时尚辣妹维多利亚·贝克汉姆借老公足球巨星大卫·贝克汉姆之力一直保持了很高的曝光率，定期出现在时尚秀场和小报的头版。
Victoria PoshBeckham has maintained the highest profile since the band split, helped by her superstar soccer-playing husband David and regular appearances at fashion shows and on tabloid front pages.
组合解散后时尚辣妹维多利亚·贝克汉姆借老公足球巨星大卫·贝克汉姆之力一直保持了很高的曝光率，定期出现在时尚秀场和小报的头版。
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