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Methods by means of mri and echocardiography, 52 cases in the research group underwent the measurement of ventricular septal defect, pulmonary artery and left ventricle, by which mcgoon ratio, nakata index and the index of left ventricular diastasis would be given out. in order to determine the operative indication, the outcomes of the calculation were judged comprehensively, according to which tof operative indication and prognosis were estimated. their results were also compared with the outcomes of the measurement during the operations.
本组52例患者均为tof,所有病例均通过mri和超声心动图检查,分别测量室间隔缺损、肺动脉和左心室,计算mcgoon比值、nakata指数和左室舒张末期容积指数,进行综合判断、选择手术适应证及估计预后,并与手术测量结果对照。
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The equations of dynamics for the balance are established by Kane's method, from which derives the characteristic equation of natural frequency by means of linearization of dynamic equations, and the six natural frequencies being developed according to the theory of vibration. The law of the six natural frequencies varying with mass of the upper platform and the stiffness of the elastic element are presented,and the Finite Element Method is employed to testify the validity of theoretical results.
基于 Kane 方法研究天平的动力学及模态,通过线性化动力学方程建立天平的固有频率方程,依据振动理论推导出并联天平的六阶固有频率及其对应的振型,同时研究了天平的六阶固有频率随敏感单元刚度系数及上平台质量的变化规律,并用有限元法验证理论计算结果的正确性。
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Spatial distribution pattern of larvae of Aleurocanthus spiniferus in citus garden was studied by means of some distribution parameters such as mean crowding, David and Moor's clustering index, index of patchiness, proliferation index, the distribution of negative binomial, Iwao's patchiness, the and Taylor's law. The results showed that the spatial distribution pattern of larvae under all densities appeared to be aggregation distribution, which is characterized by individual attraction and predominant individual group such as cored distribution pattern.
通过运用平均拥挤度m、 David和Moor的丛生指数I、聚块性指数mm、扩散指数C、负二项分布K值等多种聚集度指标和Iwao的m-m回归分析法、Taylor幂法则,研究了沙糖桔园柑桔黑刺粉虱若虫的空间分布格局,结果表明该虫在所有密度下均呈聚集分布,个体间相互吸引,分布的基本成分是个体群。
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The necessity and the possibility of construction of Chang-Zhu-Tan netty information transmitting by using broadcast and TV network is discussed, the connecting method and the network structure by means of the over SDH tecnnical system is designed and the scheme for connceting communication computer and cable TV subnets under this system is also proposed.
论述了利用广播电视网络架构长株潭三市信息平台的必要性和可行性,并采用over SDH技术体制设计了联网方式和网络结构,提出了在新体制下通信、计算机和有线电视三网融合的具体方案。
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The author attempts to discuss the criteria of administrative nonfeasance by police officers by means of cases.
近年来,学术界对于行政不作为违法问题的探讨理论方面较多,结合实际案例的研究则较为薄弱。
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The article has researched deep into its essence by means of the comparative study, and emphatically demonstrated its several kinds of main forms by which it takes place, such as unconclusion , invalidity and rescission of the contract . At the same time the article also analyzes the novation and the dischargement of liability for wrongs in conclusion of contract .
本文运用比较分析的方法,对缔约过失责任的本质特征进行了深层的探析,重点阐述了目前产生缔约过失责任的几种主要形态:合同不成立、无效、被撤销,同时分析了合同变更、解除产生缔约过失责任的情况。
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Through high-performance oil-pipe, in the proposed system the vacuum oil filter, pressuring oil filter, oil tank are combined with transformer or reactor; by means of switching over of oil circuit different oil-filtering functions can be implemented, thus the difficult problems such as the request for high quality of insulating-oil by large-scale oil immersed equipments of UHV substations and the difficulty to disposal large amount of insulating-oil are solved.
该系统把真空滤油机、压力式滤油机、油罐和变压器或高抗等通过高性能油管组合在一起,通过油路的切换实现各种滤油功能,解决了特高压变电站大型油浸设备对绝缘油品质要求高、油量大不易处理的问题。
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By the 1850s, landscape architects such as Andrew Jackson Downing and Frederick Law Olmsted were urging the benefits of bringing the country to the city by means of large parks.
十九世纪五十年代,城市设计师如Andrew Jackson Downing和Frederick Law Olmsted强烈要求通过在城市中保有大面积的公园来把乡村带入城市中。
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First the new total losses calculation method is implemented by means of the classification of variable loss and invariable loss. Hereby, the optimal voltage curve corresponding to the minimum total losses could be conveniently obtained according to the given torque curve. Then the calculation and implementing method for optimal voltage under every running condition are put forward by use of on-line measured field input quantities.
按照不变损耗和可变损耗新的划分方式得到相应的损耗计算方法;据此,根据给定的转矩曲线,能方便地得到总损耗最小所对应的最优电压曲线,进而提出由现场在线可测输入量求得各种工况下最优电压的方法。
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So me middle points in the path were determined by means of teaching,other points i n path were defined by interpolation calculation of five order polynomial,the ob jective trajectory can be obtained conveniently and in time for robot trajectory planning in joint coordinate system.
为了保证搬运机器人在整个作业过程中运行平稳、连续,在关节变量空间直接进行轨迹规划,通过示教的方法,确定路径所经过的几个中间点。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。