In this thesis, we study the quadrature squeezing spectra produced in the resonance fluorescence of a two-level atom driven by a strong coherent field and a weak amplitude-fluctuating field .
本文应用共振荧光理论，研究了由相干场和随机场驱动的二能级原子荧光场的压缩谱。
But ma said that, in the field, the manure will take longer to work because of differences in oxygen supply and fluctuating temperatures.
但是马辉文说，由于氧气供应和温度的变化，鸡粪在田间需要更长的时间才能见效。
Geophysicists have long known that the source of the fluctuating magnetic field lies deep in the center of the earth.
地球物理学家很早就知道，地球磁场变化的原因深藏于地球中心。
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