Transient responses of two-level atoms to a probe pulses with different frequencies have been studied in the presence of near-resonant laser driven pulse.
我们研究了在强近共振激光脉冲驱动下，二能级原子对不同频率的试探脉冲的瞬态反应。
Secondly, we have studied the effect of filters by the use of perturbation theory and derived the evolution equation of the soliton pulse in the presence of sliding frequency.
第二部分同样用微扰理论来研究滤波器的作用，导出了频域滤波孤子传输系统的脉冲演化方程；
No matter where you live, your continued presence truly strengthens our Gor Gor's pulse.
无论你住在何方，你的继续宠爱会让哥哥的脉搏跳动得更加有力。
By tracking population trends, and charting the presence or absence of particular species over time, scientists keep a finger on the pulse of the ecosystem.
通过跟踪人口趋势、图表或没有特定物种时间，科学家一直在用一根手指测量生态系统的脉搏。
By tracking population trends, and charting the presence or absence of particular species over time, scientists keep a finger on the pulse of the ecosystem.
通过跟踪人口趋势、图表或没有特定物种时间，科学家一直在用一根手指测量生态系统的脉搏。
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