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ovate-elliptic相关的网络例句

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Leaves oblong or elliptic, 3-4 mm wide; achenes smooth, shiny.

叶长圆形或椭圆形,3-4毫米宽;瘦果光滑,发亮。

It was shown that the shapes of upper leaf epidermal cells varies from irregularly sinuolate, nearly elliptic to irregularly polygonal. The lower leaf epidermal cells are usually irregularly sinuous or sinuate. The patterns of anticlinal walls are sinuate irregularly, and the ambits are inconspicuous between the cells.

粗叶木属植物上表皮细胞形状一般呈不规则波状、近椭圆形或者不规则多边形,下表皮细胞一般呈不规则皱波状或者多裂深波状,细胞壁曲折无章,细胞间界限不明显,上、下表皮细胞壁均有加厚现象。

Stamens (4 or)5; filaments ca. 2.5 mm; anthers elliptic, ca.

雄蕊4或5;花丝约的2.5毫米;花药椭圆形,约1.5毫米。

Leaf blade rhombic-obovate or rhombic-elliptic, both surfaces glabrous or abaxially areoles of vein axils sparsely puberulent, lateral veins 2-4 pairs.

叶片菱形倒卵形或菱形椭圆形,疏生微柔毛的两面无毛或背面脉腋小窠内,侧脉2-4 对。 25 R。 parvifolia 小叶鼠李

Culm sheath auricles absent or elliptic when present, oral setae present, sheath linear-lanceolate

当存在时的竿箨耳廓缺席的或椭圆形,存在的口头的刚毛,护套线状披针形 14

Leaflets obovate to elliptic or oblong; bractlets early deciduous

小叶倒卵形的到椭圆形或长圆形;小苞片早脱落 5 Vitex quinata 山牡荆

Disk cupular. Stamens 5, inserted on disk; anthers elliptic, without an appendage.

花盘杯状雄蕊5,着生于花盘;花药椭圆形,没有一附属物。

CT finding is round and elliptic dilations of common bile duct.1 case is multiple localized cysts of intrahepatic bile ducts.CT finding is multiple limitative dilations of intrahepatic bile ducts.2 cases are cysts in both intrahepatic and extrahepatic bile ducts.2 cases of CT cholangiography show that contrast media were in the cysts.

结果:10例胆总管呈圆形或椭圆形扩张,1例肝内胆管呈多发性局限性囊状扩张,2例同时累及肝内、外胆管,2例胆系造影CT扫描,造影剂进入囊肿内。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory.

本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型;对于非线性粘弹性的Phan Thien-Tanner流体,为了降低模拟计算对计算机硬件的要求,并使模拟计算更加稳定,采用了一种去耦算法,包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法,并建立了求解速度场和粘弹性应力场的总体有限元方程;对于PTT流体的挤出胀大问题,提出了挤出胀大熔体口模内外分离模拟法,这样可以显著降低数值模拟对计算机硬件的要求。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型;对于非线性粘弹性的Phan Thien-Tanner流体,为了降低模拟计算对计算机硬件的要求,并使模拟计算更加稳定,采用了一种去耦算法,包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法,并建立了求解速度场和粘弹性应力场的总体有限元方程;对于PTT流体的挤出胀大问题,提出了挤出胀大熔体口模内外分离模拟法,这样可以显著降低数值模拟对计算机硬件的要求。

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Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据,通过分形几何学的盒计维数法,定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以,有时,来改变颜色,不能你的食物一直是沸腾了的迹象。

MILAN - Nils Liedholm told 'Tuttosport':'It is not a decisive game but actually an important one.

米兰--利德霍尔姆接受全体育采访时说:罗马与米兰的比赛虽不是决定性的,但的确是场重要的比赛。