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The characteristics of postures, crown form, branch appearance and the leaf shape of Syringa oblata were analyzed by practical measurement of individual plant Mathematic method and model were adopted to analyze the sample data and deeply explore the vegetation quantity of Syringa oblata in Harbin. A quantitative method was put forward for vegetation quantity of Syringa oblata distributed in Harbin and the information management system of vegetation quantity of Syringa oblata for Harbin has been established.

本项研究选取了哈尔滨市园林绿化上数量最多、应用最广的木犀科丁香属植物中的紫丁香为研究对象,立足于哈尔滨市的环境特点,采用逐株实测的方法,具体分析紫丁香姿态、冠形、枝形、叶形的特点,采用数学方法和模型研究对紫丁香样本数据进行分析,并深入研究紫丁香"绿量"的内涵,探索出了哈尔滨市紫丁香"绿量"的量化方法,建立了哈尔滨市紫丁香绿量信息管理系统。

Through hang together the simplex data model based on dissection and conventional GIS data model, we develop a integrated and polymorphic model, object oriented unified model of tessellated simplex and conventional GIS, which convenient to inherit and congregate. The model manage the abstracted data accord to 4 level factor, that is geometry object model, topologic geometry object view model and geography object model.

论文采用面向对象的方法把基于剖分的单纯形数据模型与传统的GIS数据模型结合在一起,提出并建立了一个便于继承、组合、多态的较完整的三维数据模型与结构一面向对象的单纯形剖分与GIS一体化三维数据模型。

Hereby, an improved 9I model and a dimension extended 9I model that could describe topological relation between complex spatial objects are given.

该定义不但适合于对空间实体进行任意剖分后形成的复形,而且适合于多个独立实体进行剖分后的组合复形。

Our main products include many important springs such as the valve diesel engine, oil-pump, oil- spigot, actiyator, booster,full springs used in the valve and camshaft of the automobile and motorcycle,every kind of general compressed ,drawing, turned , clockwork and dishing springs,every kind of cone-shaped, convex, dished and tower-shaped springs with different diameter, pitch and multilayer tubbish.

主要品种有柴油机气阀、油泵、油嘴、调速器、调压等各种重要用途弹簧:汽车、摩托车气阀、凸轮轴等全机簧;各种通用的压缩、拉伸、扭转、发条、碟形等弹簧;锥形、中凸、中凹、塔状等各种变直径、变节距异形弹簧、多层筒式弹簧等。

The annular sealing member and inlet are provided with means to secure said sealing member to said inlet to prevent axial movement therebetween, said second sealing means engaging the outer curved surface of the tubular member whereby sealing engagement may be effected between the sealing member and the tubular member over a plurality of relative axial positions therebetween.

所述的第二密封装置与管形件的外曲面接合,借此实现密封件和管形件之间在多个相对轴向位置上的密封连接。

This paper using complex analyis and functional analysis,studies spirallike mappings on unit ball in several complex variables,and obtains the growth and covering theorems about a kind of spirallike mappings with zero of higher order.

以复分析与泛函分析为工具,研究多复变数单位球上的螺形映照,给出了一类螺形映照的高阶零点形式的增长和掩盖定理。

At last, all related problems due to ship type and towing speed influencing the quality of captured images and results were discussed. A ship model with V-shape bottom and protruding keel might cause some disadvantages for PIV measurements. The use of longer laser light ducts extending deeper is a possible solution. A ship model with light yellow paint will cause the unproportionate of light and will cause white background on captured images. It is suggested to re-paint the ship model in black or dark colors to solve this problem. In high-speed test conditions, a ship model's bow waves entrain large amount of air bubbles into water and those bubbles will block the view of camera causing some random black spots in the images. Thus, it is necessary to remove the useless black spot data and repeat the same test condition if statistics requires enough number of images.

本文讨论建立此系统之技术及实验方法,设备的架置方式和配置为一可调性调整之开放式架构,质点施放方法以一自制的施放架於实验前先布置於测试段中,并制定一实验流程规范,再分别针对实验所得滑航型及排水量型船模的流线方向及切流线方向各不同位置及船速之速度进行流场分析;实验结果发现不同船型会造成不同的实验困难:船形上突起之龙骨及V形船底会遮住照明光线,可利用较深之导管调整光页角度改善;而浅色船模表面会造成光线的不均匀,可以更改船模涂装颜色改善;高速实验的气泡会不定点的遮住光线,须先除去无资料区域并使用更多资料组数来改善。

Based on the decomposition theorem for vector space with module structure and rational canonical form of matrix, a kind of new block diagonal controllably canonical forms are inferred when the time invariant linear multivariable system is completely controllable, which the system matrix is similar to a block diagonal and has an analogy with its rational canonical form. Compare with current controllability canonical forms, this kind is easier to analyse the system constructional characteristic. The process of proof gives an effective solution method.

基于向量空间的模结构分解和矩阵的有理标准形给出了定常多输入线性系统一类新的块对角可控规范型,其中的系统矩阵相似与一个块对角矩阵,该块对角矩阵类似于矩阵的有理标准形,与现在有的可控规范型比较,更容易反映系统的结构特征,证明步骤给出了求解方法。

Bracts ovate to lanceolate, 1--3.5 cm, herbaceous, usually 7- or more veined.

苞片卵形到披针形,1 --3.5厘米,草质,通常7-或更多脉。

It was demonstrated that BDF-H16 was an gram-negative bacterium and had a bacilliform or arc bacilliform shape with a flagellum at one end.

结果表明:蛭弧菌BDF-H16为革兰氏阴性菌,杆形或弧杆形,端生一根鞭毛,菌体大小多为0.2μm~0.5μm×0.8μm~1.2μm;蛭弧菌BDF-H16对实验所选用的革兰氏阴性菌和部分革兰氏阳性菌均有裂解作用;以大肠杆菌为宿主菌,其最佳生长条件为宿主菌浓度6.75×10~9cfu/mL、pH7.0~7.5、温度28℃;在NaCl含量0.85%~5.00%的培养基中能够生长;恩诺沙星、诺氟沙星对其有抑制作用。

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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。

This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.

这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。