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Based on the aerodynamic characteristics of space shuttle booster-like missile bodies at angle of attack from 0° to 180°, the flying characteristics of high maneuver at 90° angle of attack and velocity consuming at 180° angle of attack are analyzed.
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摘要以新一代无翼式气动布局导弹为背景,在大攻角气动特性理论基础上,分析了在导弹主动段、攻角在180°范围内变化的导弹飞行特性,得出了90°内大攻角最大转弯能力和180°攻角附近最大降速效果的结论。 |
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Based on the algebraic transformation and the frame of KMM algorithm, a self-adjusting factor was embedded into Newton equations for P0 linear complementarity problem, a new infeasible interior point algorithm for P0 linear complementarity problem (P0-LCP
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摘要基于代数变换和KMM算法的框架,通过在牛顿方程中嵌入一种自调节功能,提出了一种新的求解P0阵线性互补问题的不可行内点算法,并证明了该算法的全局收敛性。 |
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Based on the amount of terpenoids in Illicium, put various kinds of terpenoids in order by affiliated basic skeleton, the total contents of terpenoids in various kinds of basic skeleton type as the quantity property, utilized cluster analysis via SPSS and
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摘要以八角属植物中所含的萜类成分为基础,把各种萜类成分按照其所属的基本骨架类型进行整理,将各种骨架类型萜类的总含量作为数量性状,采用SPSS系统进行聚类分析研究,作出八角属的树形分支图。 |
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Based on the amount of work accomplished in the previous iteration, the team signs up for what will be undertaken in the current iteration.
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基于在之前的迭代中完成的工作,团队签定当前迭代中将要承担的工作。 |
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Based on the analyses of decision of irrigation schemes, the decision method is given based on GSG system that can optimize the irrigation schemes by Group Weights-Making, Single Fuzzy Evaluation and Group Decision-Making.
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摘要在对灌溉方案决策特点进行分析的基础上,提出了基于GSG体系的灌溉方案决策方法,通过群定权、单人模糊评判和群决策的步骤,对拟定的灌溉方案进行优选。 |
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Based on the analyses of dynamic deformation process of the soft failure roadway under high ground stress, process-monitoring stepwise supporting principle was put forward to maintain this kind of roadway, that is 1) making full use of the carrying capaci
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基于该类巷道变形的动态阶段性特点,针对性地提出该类软岩巷道支护的过程监控分步支护的过程控制方法,即开巷初期充分发挥围岩自身的承载能力;适时采取围岩注浆加固,“保护与强化”围岩力学性能,提高围岩完整性;最后关键部位加强支护。 |
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Based on the analyses of pollution characteristics of rural rivers,this paper discussed a series of countermeasures to control the pollution effectively,such as preplanning,attaching importance to these issues,bringing crowd into play,comprehensive regula
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在对农村河流污染特点进行分析的基础上,对如何有效控制农村河流污染的措施进行了一定的探讨,提出规划在前、政府重视、发动群众、综合整治、循环利用、结合特点、区别对待、建立制度、长效管理的农村河流保护措施。 |
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Based on the analyses of pricing process, cost determination philosophy and pricing method at each phase of engineering construction, this paper summarizes the experience of engineering cost control in three aspects: (1) design phase is a key phase of eng
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文章在分析工程建设各个阶段计价过程以及各个阶段造价确定依据、定价方法的基础上,从3个方面总结了工程造价控制的经验:(1)设计阶段是工程造价控制的关键阶段;(2)技术与经济相结合是工程造价控制的最有效手段;(3)工程项目全过程的合同管理是工程造价控制的重要内容。 |
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Based on the analyses of structural features, volcanic activities, sequence construction and so on, It is believed that Liaohe Basin has experienced the period of dextral transtensional stress field in Late Jurassic-Early Cretaceous, Middle and Late Paleo
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对构造现象、火山活动、层序充填型式等多种实际资料的分析表明:辽河盆地经历了侏罗纪末-白垩纪早期、古新世中后期、始新世中后期、中新世等右旋张扭应力场作用阶段,以及白垩纪晚期、古新世初期、始新世早中期、渐新世、上新世以来等左旋压旋应力场作用阶段。 |
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Based on the analyses of the diversity of shape and structure of tarsometatarsus of living birds and its corresponding function, we can study the shape and habit of birds in the early stages, at the same time can discuss the evolutive law of functional be
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特别是通过对现生鸟类跗跖骨形态结构多样性与对应功能的分析,可以此作为研究早期鸟类形态习性的参考依据,同时也可进一步探讨不同地质历史时期鸟类功能行为的演化规律。 |
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Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the Fuling reach in the Yangtze River before and after the impoundment of the Three Gorges Reservoir, the water level, velocity variation and influenced
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摘要在分析长江涪陵段的水沙特性和三峡水库蓄水前后该河段河床演变趋势的基础上,运用二维水流数学模型,分析了4种流量组合情况下在三峡水库运用前和运用50年,涪陵港区码头修建前后的水位、流速变化及其影响范围。 |