提出要求

The traditional design methods based on inertial brake dynamic test center can no longer adapt to high development technology, and leave too much to be desired for the requirement of modern plane designing, so a full system digital simulation design scheme on aeronautic wheel braking system is proposed in this paper.

由于航空工业的发展对防滑刹车系统的要求越来越高，原有的以惯性台刹车动力试验为基础的设计手段已与现代的高科技术不相适应，远不能满足现时飞机的设计要求，因此本文提出了航空机轮刹车系统全数字化仿真设计方案。

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出，每个树种在树冠内相对高度上的叶量的垂直分布是不同的，天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小，约占10%左右；在树冠的中部以及中下部(0.4CL～0.8CL)，叶量所占比例最大，几乎集中了整个树冠60%～75%的叶量；而在树冠的下部(0.8CL以下)，几乎占很少的叶量，大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系，并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木，并不是传统意义上的全部竞争木；本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况，并采用等树冠投影面积法把树冠分为5级，这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想，用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型，设计了10个与林学意义相一致的约束条件，并采用0-1整数规划的思路，在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例，具体计算出了每株采伐木，经过择伐后，目标函数值按模型设计的要求发生了极大的改变，增加了5倍多，说明了最后这个解的优良性，满足了设计的要求。

Considering the restricted relationships of time, classroom, teacher and class, PCA compartmentalizes the different equivalents and processes one off scanned courses by the levels of their precedence, avoiding conflicts adjustment. The PCA system can fulfill the processing course plan in several minutes, even the condition. The application of this system which has been used for two years demonstrates the effectiveness of the system and the high efficiency of its related algorithm.

根据时间、教室、教师和班级的约束关系，进行等价类划分，依据所设定的优先级次序进行一次性扫描排课，尽量回避对冲突的调整工作，并在此基础上实现了一个课程调度系统，既适应学分制排课要求或满足教师提出较苛刻的上课条件要求，也能在几分钟内做出排课计划。2年的使用实践表明了该系统的有效性和相关算法的高效性。

Combined with the requirement of real project,the statistic concept of believing degree is introduced into feature extraction and a dynamic algorithm for effective feature extraction is proposed,which is based on accuracy requirement and capable of constringing the feature dimension while reducing leaked or pretend alarm probability.

结合实际工程中的某些要求，将统计学中的置信度概念引入特征提取中，提出了一种按照精度要求进行有效的特征提取的算法，该算法能够实现在抑制漏警错误或者虚警错误的同时降低特征维数的功能。

Combined with the requirement of real project,the statistic concept of believing-degree is introduced into feature extraction and a dynamic algorithm for effective feature extraction is proposed,which is based on accuracy requirement and capable of constringing the feature dimension while reducing leaked or pretend alarm probability.

摘 要：结合实际工程中的某些要求，将统计学中的置信度概念引入特征提取中，提出了一种按照精度要求进行有效的特征提取的算法，该算法能够实现在抑制漏警错误或者虚警错误的同时降低特征维数的功能。

The lawyer contested the claim, and tried to prove that it was false.

律师对那个要求提出异议，并力图证明它是一种无理的要求。

Aiming at the new situation of engineer thawing course teaching content and course system reformation in 10 years, the paper indicates the necessity of emendating teaching basal request today and puts forward a mode which fits for the actual undergraduate engineering drawing course's teaching basal request.

针对近10年来，工程制图课程教学内容、课程体系改革出现的新情况，指出了现阶段修订教学基本要求的必要性，提出了适应于现在的本科工程图学课程教学基本要求的模式。

But against this decision, Hungary interjects a new appeal. Reappearing in this new appeal are claims that were examined and debated twenty-five years ago.

但匈牙利政F无视这一决定，公然提出一项新的领土要求，然而这一要求不过是25年前被否决提案的再现而已。

But against this decision, Hungary interjects a new appeal. Reappearing in this new appeal are claims that were examined and debated twenty-five years ago.

但匈牙利ZF无视这一决定，公然提出一项新的领土要求，然而这一要求不过是25年前被否决提案的再现而已。

On the hopeful 21st century, the rapid development of information, biotechnology, energy resources, environment, advanced manufacturing technology and national defense have produced the new demand for materials. More and more small size of materials will meet the demand of miniatured, intelligent, highly integrated, densely memorized and super fast transmission element. Aerospace industry, up-to-date military equipment, advanced manufactured technology and so on has required better and better properties.

中文题名有机高分子－无机纳米复合粒子改性高分子材料的力学性能－相态与群子标度之间关系的研究副题名外文题名 Studies on the relationship of mechanical properties-morphology and sub-cluster parameters of polymer materials modified by organic polymer-inorganic nanocomposite particles 论文作者权英导师金日光教授学科专业材料学研究领域\研究方向学位级别博士学位授予单位北京化工大学学位授予日期2002 论文页码总数177页关键词纳米材料高分子材料纳米复合材料纳米粒子馆藏号BSLW /2003 /TB383 /7 在充满生机的21世纪，信息、生物技术、能源、环境、先进制造技术和国防的高速发展必然对材料提出新的需求，元件的小型化、智能化、高集成、高密度存储和超快传输等对材料的尺寸要求越来越小；航空航天、新型军事装备及先进制造技术等对材料性能要求越来越高。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。