...面积差值法；油气识别[gap=1154]ransform;time-frequency spectrum;spectrum simulation;absorption and attenuation;area difference method;hydrocarbon idenfication ..
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This method is based on the measurement of the rate of air flow through a given area of fabric by a given pressure difference across the fabric.
这个方法是基于对空气流速的测量：在一块既定面积的面料上，通过面料两边不同的压差来获得。
To better understanding the weld image, the histogram equalization method was used aiming at enlarging the difference between groove and other area.
运用直方图均衡化方法强化坡口与非坡口的差别，增加焊缝图像的理解性。
In this paper, we present a new method, which is entitled "the Function of Area Difference", to detect the pitch period of speech signal.
本文提出了一种新的检测基音周期的方法：“面积差函数法”。
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