在沿海与内地应形成若干个价格梯度，梯度差应大体上能弥补油品储运、分配和销售的费用。

Different price gradients should be established for coastal and inland regions, with the differences sufficient to cover the costs of storage, distribution, and marketing.

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车牌定位是车牌自动识别系统中关键的第一步，传统的最大梯度差算法按图像像素矩阵的顺序进行扫描和运算，存在运算量大，耗时长的缺点。

The traditional MGD (maximum gradient difference) algorithm based on the order of the image pixels matrix has the shortcomings of the large operation measure and long-time running.

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基于完全互信息梯度表达式及得分函数差分的性质，提出一种在线频域盲解卷积块算法。

An online block algorithm for frequency domain blind deconvolution was proposed based on the complete mutual information gradient and the properties of the score function difference (SFD).

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