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.
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.
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).
文章分析了与折冲流有关的因素，如压差、压力和流速梯度以及渥奇面参数，进而提出了修改方案，基本解决了该孔存在的折冲流问题。
The factors related to the oblique flow, such as pressure difference, pressure and velocity gradients and the parameter of Ogee surface are also analysed.
采用有限差分法和混合有限分析法对耦合模型进行数值求解，并分析了启动压力梯度对地下水污染浓度的影响。
The finite difference method is used to solve the coupling model, and the influence of starting pressure gradient on the distribution of groundwater pollutant concentrations is analyzed.
随着循环量的增大，立管内的负压差梯度及气固相对速度也随之增大；
The negative pressure gradient and slip velocity in standpipe increase with the increase of circulating rate.
首先提出了一种基于标准差的梯度算子，将图像中潜在的边缘区域很好地区分出来；
Firstly, a gradient operator based on local standard deviation is performed and potential edge regions are well separated.
严格的数值计算结果表明：两类透镜的纵、横向球差都随折射率梯度的增强而减小。
The accurate expressions to calculate the aberration for two sorts of lens decrease on the increase of gradient index.
还指出由于当前的连续小波神经网络主要使用传统BP神经网络的随机初始化方法和基于梯度的训练算法，因此存在收敛性差的缺点。
It is also indicated that current WNN has a poor convergence performance because of adopting the random initialization method and gradient training algorithm of traditional BP NET.
方法：密度梯度离心法分离44例CHF患者和20例正常人PBMC，酶消化和差速贴壁法分离乳鼠心肌细胞。
Meathod: The experiment adopted density gradient centrifuging to separate PBMC of 44 patients with CHF and 20 normal person and enzyme digestion to separate neonatal rat cardiac myocyte.
梯度压差和日温差是影响实验动物科技设施环境条件达标的关键。
The pressure gradient and the difference in temperature between day and night were often the key obstacles to meet the requirement of standard laboratory animal facilities.
本文根据常微分方程参数反问题的数学理论，将正交化方法同有限差分法结合用于确定水质模型参数，并与正则化方法、最速下降法和共轭梯度法作了比较。
The comparison of the calculation results show that orthogonal rule method is fast, simple and reliable, and is applicable to the calculation of the water quality modeling parameters.
利用差商代替难以计算的精确导数，结合既约梯度法的思想建立新的算法；在目标函数一致凸的条件下证明了既约差商法的整体收敛性。
The difference coefficient was used to replace the exact derivative which is difficult to be computed, and a new algorithm was presented by using the idea of reduced gradient method.
本文引入预条件共轭梯度法，提出了结合频域有限差分法结合分析二维柱体的电磁散射问题。
The finite-difference frequency-domain method with preconditioned conjugate-gradient technique is presented for two-dimensional cylinder scattering problems.
本发明结合了放电等离子烧结和分步 烧结的方法，解决了金属铜和氮化铝陶瓷之间的结合困难问题，也实现了高温差、高不相容性梯度复合材料的制备。
The method solves the problem of poor bonding between Cu and aluminum nitride ceramic, and can realize preparation of gradient composite with high temperature difference and poor compatibility.
结果表明，微裂缝性特低渗透油藏一维单向渗流的压力分布影响因素比较多，如启动压力梯度、变形系数、生产压差和排距等，并且这些因素均以非线性方式产生综合影响。
The single-phase porous flow plugged by mobile gels is nonlinear, the starting pressure of oil is lower than that of water, and the permeability of oil is higher than that of water.
结果表明，微裂缝性特低渗透油藏一维单向渗流的压力分布影响因素比较多，如启动压力梯度、变形系数、生产压差和排距等，并且这些因素均以非线性方式产生综合影响。
The single-phase porous flow plugged by mobile gels is nonlinear, the starting pressure of oil is lower than that of water, and the permeability of oil is higher than that of water.
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