Under favourable circumstances hydrodynamic pressure may be generated to oppose the flow due to the applied pressure. 在有利的环境下,可产生流体动压力来阻止由所加压力引起的流动。
The gradient plus pressure force brought satisfactory results in the eardrum images segmentation while the gradient force and the GVF force failed. 对于鼓膜图像的分割,应用梯度外力和梯度矢量流外力均易越界,应用梯度加压力得到了较好的分割结果。