实验上观测到光反馈引起激光脉动频率漂移和混沌运转等现象。
The phenomena of pulsing frequency shift and chaos in CO2 laser caused by light feedback are observed experimentally.
因为磁性生物体有自己的脉动频率，会让心脏将血液泵送到整个身体。
Magnetic biology has its own pulsation that causes the heart to pump blood through the body.
在实际操作过程中，选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
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