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Agricultural non-point source pollution is entirely different from that of point sources in their generation and transportation, so special methods have to be derived to internalize its external diseconomy.

农业非点源污染是典型的负外部行为，但非点源污染的发生与点源污染有着显著不同的特征，这就决定了非点源污染外部性内部化方法的独特性。

Many conceptions derived from the Cabala may be found in the dogmatics of Protestantism as taught by its first representatives, Luther and Melanchthon.

许多观念源自Cabala可能会发现在新教教义学所教的第一届代表，路德和梅兰希通。

Ironically, what appears to be romantically pure images are derived from detritus and waste – in this exhibition the subject is globs of street spit, sticks of doughy pastry and discarded plastic bags.

但实际上，看似华丽的影像是用废品组成的——作品可能是马路上的一口唾沫，一块软乎乎的油条，或者是废弃的塑料袋。

In this paper, a speckle reduction method for SAR images based on Dual Tree Complex Wavelet Transform is proposed. It first presumes the probability distribution function for complex wavelet coefficients of the original nature image, and then applies MAP theory to estimate coefficients from the noisy wavelet coefficients. Filtered image can be derived after inversed DTCWT.

该方法首先对无噪声污染图像的复数小波系数的统计概率分布进行建模；然后利用此先验概率模型，采用最大后验概率方法从含噪小波系数中估计出无噪声污染的小波系数：最后经重构得到滤波后的图像。

In order to make a thorough use of the anatomical and functional information derived from cardiac magnetic resonance images, the epicardium and endocardium of the left ventricle should be extracted in advance.

为了充分利用心脏核磁共振图像(magnetic resonance image，简称MRI)中关于左心室的解剖和功能信息，必须先分割左室壁内、外膜。

In the first form, Class must be an instance of type or of a class derived from it.

第一种形式中，''Class'' 必须是 type 或其派生类的一个实例。

The nonlinear dynamic equations including the initial geometric imperfections of laminated composite cylindrical shells were derived from Hamilton's philosophy. Assuming the transverse displacements to be composed of axially symmetrical part and axially asymmetrical part, the governing equations expressed as displacement forms of dynamic buckling were obtained by Galerkin method. The equations were solved by finite difference method. The effects of impact velocity, lamination angle, initial geometric imperfection on the axial dynamic buckling of laminated composite cylindrical shells were discussed.

由Hamilton原理导出包含初始几何缺陷的复合材料层合圆柱壳的非线性动力方程；将横向位移设为对称及非对称两部分，由Galerkin方法得到以位移形式表达的动力屈曲控制方程，通过有限差分方法求解；讨论了冲击速度、铺层角度、初始几何缺陷等各种因素对复合材料圆柱壳轴向冲击动力屈曲可能产生的影响。

After descibing the concepts, definitionsand operation approaches of quantum group and SLq(2) Lie algebra, the physicalmeaning of quantum group particles is explained in the present thesis. The gaugeinvariance in SLq(2) gauge field and its thermodynamics model is considered basedon the idea of q-deformation. The zero energy gap equation and q-deformed energygap equation are derived under the assumption of q-quantization and semi-classical q-quantization, then the zero-temperature energy gap A(0,q) and crititical temperature〓 can be calculated from the q-energy gap equation.

在介绍了量子群和SLq(2)李代数的基本概念，定义和运算方法后，文中进一步阐述了量子群粒子的物理意义；在q变形思想基础上，本文研究了SLq(2)规范场及其热力学模型中的规范不变性质，并在q量子化和半经典q量子化的假设下导出了零能隙方程和q变形能隙方程；然后从q能隙方程计算了与零温度能隙△(0，q)和临界温度〓。

The incomes derived from production, business operation and other sources by the branches of an enterprise with foreign investment inside or outside China shall be consolidated by its head office in paying income tax.

外商投资企业在中国境内或者境外分支机构的生产、经营所得和其他所得，由总机构汇总缴纳所得税。

Another point of interest can be the establishing relationships between data derived from different hierarchies and levels.

另一点，有兴趣可以建立之间的关系所获得的数据，从不同层次和水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。