网体

ER took part in cell wall material deposition during endosperm cell construction. ER rounded up matrix forming endocytic vacuole. ER cisterna swelling and accumulating starch developed into amyloplast. ER took part in protein synthesis and deposition, played a core role in protein body formation. ER swelled at the end to form many vesicles. ER was associated with the plasmodesmata, helped transporting nutrients at the development and differentiation stage.

内质网参与胚乳细胞构建中细胞壁物质的积累；内质网包裹基质形成吞噬体，为胚乳的发育提供营养；内质网槽库膨大，积累淀粉转变成淀粉质体；内质网参与蛋白质的合成与积累，在蛋白体的形成中处于核心地位；内质网末端节状膨胀，形成潴泡；灌浆高峰期内质网常与胞间连丝相连，有助于物质的运输。

For example, Keyfitz made the classification of the bifurcations in one state variable, without symmetry up to codimension 7; Golubitsky and Schaeffer obtained the classification of the bifurcation problems in one state variable with Z_2 symmetry, in one parameter up to codimension 3; Golubitsky and Roberts studied the classification of degenerate Hopf bifurcation in two state variables with dihedron D_4 symmetry, in one parameter up to topological codimension 2; Melbourne obtained the classification of bifurcations in three state variables with octahedral symmetry, in one parameter, up to

需要指出的是以上研究均没有考虑分歧参数的对称性，Futer，Sitta和Stewart的工作虽然考虑了分歧参数的对称性，但仅限于分歧参数与状态变量具有相同的对称性，他们得到了状态变量与分歧参数均关于二面体群D_4对称，拓扑余维数不大于1的分歧问题的分类。高守平和李养成则讨论状态变量和分歧参数均具有对称性且对称性可以不同的分歧问题，并给出了状态(来源：A770707BC论文网www.abclunwen.com)变量关于二面体群D_4对称，分歧参数关于S~1对称，拓扑余维不超过1的分歧问题的分类。本文第一章讨论两个状态变量关于二面体群D_3对称，两个分歧参数关于O(2)对称的分歧问题，给出了该类分歧问题在非退化条件q(0)≠0下所有情形的分类与相应的识别条来源：AdadaBC论文网www.abclunwen.com

By analyzing the performance and comparing the minimum section area of grounding electrode of copper with galvanized steel,the connection method with exothermic fireclay fusion splicing of copper grounding electrode with good performance is introduced.

对铜与镀锌钢的性能和接地体最小截面进行比较分析；介绍了效果良好的铜接地体的放热火泥熔接的连接方式；提出铜材接地网实施的优化措施，并结合工程实践，对铜材接网及镀锌钢接地网进行了技术经济比较。

Use triangulable interpolate rational spline function to smooth the DEM surface of the hydrogeologic layer top and impervious base, and at its basic, generate the regular grid volume data of the hydrogeologic layer which have homogeneity change characteristic.

3利用三角剖分插值有理样条函数进行水文地质层顶、底板DEM曲面光滑，在此基础上生成呈均质变化特征的水文地质层的规则格网体数据。

Including, without limitation, indebtedness owing by Seller to third parties who have granted Buyer a security interest in the accounts, chattel paper and general intangibles of said third party; and further including, without limitation, any and all attorneys fees, expenses, costs, premiums, charges and interest owed by Seller to Buyer, whether under the Agreements, or otherwise） whether due or not due, absolute or contingent, liquidated or unliquidated, determined or undetermined, whether Seller may be liable in华夏学习网idually or jointly with others, whether recovery upon such indebtedness may be or hereafter becomes barred by any statute of limitations or whether such indebtedness may be or hereafter becomes otherwise unenforceable, and includes Sellers prompt, full and faithful performance, observance and discharge of each and every term, condition, agreement, representation, warranty undertaking and provision to be performed by Seller under these Agreements.

这里的术语"负债""债务"应按照各自最广泛的含义被使用，债务包括卖方先前、现在和今后，基于自愿或非自愿发生的所有预付款、负债、债务和责任，不论债务如何产生，（包括但不限于，卖方对已用自己的帐户、动产文书或一般无体物向买方提供担保利益的第三方之负债，并进而包括但不限于，卖方在协议等项下欠付买方的全部律师费、支出、费用、保险费、运费和利息），不论债务是否已经到期、是否必然发生、是否已清算、是否已决，不论卖方是单独或与他人连带承担责任，不论债务的追偿是否已经或将会受到时效法的阻碍，也不论债务是否已经或将要无法强制执行，卖方应当即时、充分和善意的履行、遵守和完成全部条款、条件、协议、陈述、担保义务和这些协议项下卖方应当履行的条款。

The terms indebtedness and obligations are （hereinafter collectively referred to as the Obligations） used herein in their most comprehensive sense and include any and all advances, debts, obligations and liabilities of Seller, heretofore, now, or hereafter made, incurred or created, whether voluntarily or involuntarily, and however arising（including, without limitation, indebtedness owing by Seller to third parties who have granted Buyer a security interest in the accounts, chattel paper and general intangibles of said third party; and further including, without limitation, any and all attorneys fees, expenses, costs, premiums, charges and interest owed by Seller to Buyer, whether under the Agreements, or otherwise） whether due or not due, absolute or contingent, liquidated or unliquidated, determined or undetermined, whether Seller may be liable in华夏学习网idually or jointly with others, whether recovery upon such indebtedness may be or hereafter becomes barred by any statute of limitations or whether such indebtedness may be or hereafter becomes otherwise unenforceable, and includes Sellers prompt, full and faithful performance, observance and discharge of each and every term, condition, agreement, representation, warranty undertaking and provision to be performed by Seller under these Agreements.

这里的术语"负债""债务"应按照各自最广泛的含义被使用，债务包括卖方先前、现在和今后，基于自愿或非自愿发生的所有预付款、负债、债务和责任，不论债务如何产生，（包括但不限于，卖方对已用自己的帐户、动产文书或一般无体物向买方提供担保利益的第三方之负债，并进而包括但不限于，卖方在协议等项下欠付买方的全部律师费、支出、费用、保险费、运费和利息），不论债务是否已经到期、是否必然发生、是否已清算、是否已决，不论卖方是单独或与他人连带承担责任，不论债务的追偿是否已经或将会受到时效法的阻碍，也不论债务是否已经或将要无法强制执行，卖方应当即时、充分和善意的履行、遵守和完成全部条款、条件、协议、陈述、担保义务和这些协议项下卖方应当履行的条款。

Increased the interface of sheet of a paper and network system to accumulate greatly, eased wire mark, raised the smoothness of paper, and move smooth, improved service life.

大大增加了纸页和网体的接触面积，减轻了网痕，提高了纸张的平滑度，并且运行平稳，提高了使用寿命。

Study of the mesh selectivity of diamond and square mesh codend of two-stick swingnet;2. In order to assess the size selectivity for fishes of beam trawl fishing in offshore of the East China Sea,experiments of codends with different mesh configuration,including diamond mesh, square mesh and turned through 90° diamond mesh(T90) in 4 sea trials have been carried out and catch data were collected by comparative fishing method.

选择性分析结果显示，对于短吻舌鳎，横向使用的菱形网目网囊L50(50%选择体长)最大，而SR最小，菱形网目网囊L50最小，而SR最大；对于棘头梅童鱼和小黄鱼，菱形网目网囊的L50最小，SR最大，横向使用的菱形网目网囊L50最大，而方形网目网囊SR最小；除不同结构的网目扩张程度不同以外，鱼体体型结构的特殊性以及网囊结构也可能是导致选择性差异的主要原因。

Its rule of change was obtained. On the basis of other studies, the flocculation kinetics and flocs structure was studied. By making some assumptions, collision frequency were presented. Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict flocs number and size during flocculation of Yellow River's loess particles without using empirical parameters. The TEM and SEM were used to obsever flocs in the study of floc structure. The flocculation was divided as flocculi, floc and floc aggregate. The flocs structure model was established by assumption that particles position in floc accords with tetrahedron. The fractal dimension of model and experimental flocs was found to be coincident. So the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent.

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能眵反映高分子絮凝黄河泥沙生成的絮体结构。

Its rule of change was obtained.On the basis of other studies,the flocculation kinetics and floes structure was studied. By making some assumptions, collision frequency were presented.Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict floes number and size during flocculation of Yellow River's loess particles without using empirical parameters.The TEM and SEM were used to obsever floes in the study of floe structure.The flocculation was divided as flocculi,floc and floe aggregate.The floes structure model was established by assumption that particles position in floe accords with tetrahedron.The fractal dimension of model and experimental floes was found to be coincidentSo the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符西安建筑科技大学博士学位论文合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能够反映高分子絮凝黄河泥沙生成的絮体结构。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。