在结构上
- 与 在结构上 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, the theory studies, digital simulation and microcomputer control experiments to a robot have proved that the AFDC system of robot has signally effective intelligent dynamic control functions and makes robot to have excellent dynamic response performances and motion accurary by measuring only input and output of the robot, and that the system structure and control algorithm is more simple, reliable, and more easy to be used on common microcomputer then another high-level dynamic control systems of robot.
文章在理论研究、仿真控制和机器人的微机控制试验方面的研究工作表明,文中提出的机器人自适应模糊动态控制系统既具有显著有效的智能动态控制功能。能在仅测量输入-输出信息条件下,保持机器人取得优秀的响应性能和运动精度;又在结构和算法上比一般的高级机器人动态控制系统更简洁、可靠和易于在普通微机上实时在线实现。
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At the present, almost all the industrial control systems utilize these three control systems. Among them each system has its own performance advantage and also has own defectiveness. In the developing process every system complements and promotes each other for the structure and performance. All of them are developing in the direction of more reliability, opener and easier to maintenance.
目前全球范围内的工业控制自动化系统几乎都是采用了这三类控制系统,它们在性能上各有所长,也有各自的局限性,各类系统在发展的过程中在结构和性能上相互补充、相互促进,都在向更可靠、更开放、可维护性更好的方向发展。
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Chapter 1 gives the background,current research process of relatedproblems and summarizes this thesis\'s work.In chapter 2,we study the Brownian motion with holding and jumping on the boundary.We use the resolvent method to obtain the infinitesimal generator because the domain of the infinitesimal generator is essentially the same as the range of the resolvent.Knowledge of this range and of the differential operator determines uniquely the infinitesimal generator.Since the semigroup generated by the DHJ is not strongly continuous,to use the nice property of strongly continuous semigroup in analytic theory,in chapter 3 we show that the dual is strongly continuous and derive ergodicity through spectral radius formulas and finally obtain the ergodic theorem by duality. In chapter 4,we discuss a class of a more general process---one dimensional Feller diffusion proposed by W.Feller in 1954.The Feller diffusion allows the possibility of jumps from boundary to boundary,not only from boundary to the interior.We give the stationary distribution of this process.
具体地,本文的结构如下:第一章给出了问题产生的背景,研究现状及本文的主要工作;第二章研究了在边界上逗留后随机跳的布朗运动,我(来源:3dABC论文网www.abclunwen.com)们用预解算子的方法得到其无穷小生成元,因为无穷小生成元的定义域本质上就是预解算子的值域,知道这个值域和微分算子形式就能唯一地决定无穷小生成元;由于DHJ过程产生的半群不是强连续的,为利用强连续半群的一些漂亮性质,在第三章中我们证明其对偶半群是强连续的,然后由谱半径公式得到遍历性并且最后由对偶得到遍历定理;第四章讨论了Feller在1954年引入的更广的一类过程----一维Feller扩散过程,Feller扩散过程允许有从边界到边界的跳发生,即不仅仅局限于从边界到内部的跳,在这一章中,我们给出了一维Feller扩散过程的平稳分布;在第五章,我们讨论了一些相关的问题,给出了DHJ过程对应的PDE问题及特征值与收敛速度的关系。
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Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.
我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性,从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则,创造性地采取了解决冻土施工难题的相应对策:对于不良冻土现象发育地段、线路尽量绕避;对于高温极不稳定冻土区的高含冰量地质,采取"以桥代路"的办法;在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施,提高冻土路基的稳定性;在桥涵基坑、挡水埝基槽开挖中,创造性地应用了单齿破碎器,解决了冻土开挖难题;在桥涵工程施工中,采用了耐久性混凝土,采用了三步养生法,保证了结构物内实外美。
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No matter on form or on scale,industrial transformation of the old industrial city in China is still developing. These changes are manifested in industrial structure adjustment, industrial space reconstruction and industrial organization change etc.
在这种背景下,中国老工业城市产业转型无论在形式上还是在规模和强度上都在继续发展,具体表现在产业结构调整、产业空间重构和产业组织变化等方面。
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The third chapter deduces the universal rules in the process of derivation. The substitution rule shows the nature of representations in two levels, the structure and the semantic levels with the features of combinatory and paradigmatic relations. The major parameter variations are interpreted with a weight on dislocation of word and the multi-functions of Wh-word in the frame work of the syntactical asymmetry. The fourth chapter further discusses the innate reasons of the English Wh-move and Korean Wh-in-situ in the syntactical system after summarizing the main findings of the comparison.
而后,在第三章采用演绎方法对英朝Wh-问句转换生成的共性规则,即指代规则在结构和语义两个层级上的指代特征及其聚合组合关系特征进行了分析;以句法不对称性为理论依据,以错位语序和wh-词的一词多功能为着眼点,对主要参数差异进行了生成解析;在第四章,对英朝Wh-问句对应关系和上述对比研究进行归纳总结的基础上,在句法系统中进一步讨论了英语WH-移位与朝鲜语WH-原位的言内原因。
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The DTM for automatic-design of thruway was put forward by Prof. Miller in 1956. Since then , the DEM is used for design of various circuit diagram, and for account of area, cubage, gradient of various project, and for estimating visibility from point to point; for rendering contour, grade-graph, aspect-graph, solid model; for making orthographic image and repair map in the Topography; for assistant data to classify in the Remote Sensing; as basic data in the GIS, for analysis and layout actuality of using soil, for disaster prediction; for navigation, guiding missile in the military affairs.
美国麻省理工学院Miller教授为了高速公路的自动设计于1956年提出了数字地面模型的概念后,DEM被用于各种线路的设计及各种工程的面积、体积、坡度的计算,任意两点间可视性判断及绘制任意断面图;在测绘中被用于绘制等高线、坡度坡向图、立体透视图,制作正射影像图与地图的修测;在遥感中可作为分类的辅助数据;它是地理信息系统的基础数据,可用于土地利用现状的分析、合理规划及洪水险情预报等;在军事上可用于导航及导弹制导;在工业上可利用数字表面模型DSM或数字物体模型绘制出表面结构复杂的物体的形状[2]。
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Alternative modernities, so conceived, are cultural, not structural: they differentiate not social systems, but sets of values typically, a distinctive combination of morality and sensibility, making up a certain national 'style' of life.
他所看到的另类现代性是文化上的不是结构上的,差别体现在价值观上而不是社会体制上。典型的情况是道德和情感的独特结合构成某种民族的生活方式,但恰恰因为这是对某个文化来说独特的东西,一般情况下最不容易转移到其他地方,也就是说它是无法普遍化的东西。
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SiC polytypes of 6H and 15R and a transition zone between the two were observed under HREM and TEM and discussed from the point view of the crystal structures; the clear evidence of Al〓C〓 nucleated in the SiC particle was provided, indicating the aluminum penetrating the SiC grains is already carbon-saturated and, consequently, Al〓C〓 crystals grow in the particles wherever a temporary local supersaturating is produced; The experimental observation indicated that the types of the interface between SiC and Al are variable and the distribution feature of reaction product, Al〓C〓, were also given in the present work: to be nucleated on SiC, to be aggregated at SiC/Al interface zone or to be aggregated at the crystal boundaries.
通过高分辨透射电镜,本文观察到SiC增强体中6H和15R同质多晶现象及6H-15R SiC转变区,以及另外一种无序的SiC同质多晶,并从其晶体结构的角度解释了6H和15R在晶体内共存的现象。通过高分辨透射电镜,本文给出了Al〓C〓在SiC颗粒内部形核的明证,表明Al〓C〓形核是Al渗透到SiC颗粒内部在C过饱和处在SiC的(0006)面上而形核,而且一种可能的位相关系为A1〓C〓[11〓0]∥SiC[11〓0]。研究结果同时给出了SiC/Al复合材料的界面反应产物A1〓C〓的分布特征:在SiC上形核并生长,聚集于SiC/Al界面去附近,或者聚集于晶界上。
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It was found that there was no difference in the structure and constitution of defense genes between resistant and susceptible isolines, but the transcriptional expression of these three defense genes in resistant ...
结果表明,在玉米抗病和感病自交系间,没有发现防卫基因在结构和组成上的差异。但在受到玉米大斑突脐胞菌侵染诱导后,玉米抗病系中防卫基因在转录水平上的表达强度明显高于感病系。
- 推荐网络例句
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Fancy gold-plated dangling earrings with facetted White Opal crystals.
花式镀金悬垂耳环与facetted白欧泊水晶。
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This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.
本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。
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In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).
在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。