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The contourlet transform used in the system was constructed by dual tree complex wavelet transform followed by critically subsampled directional filter banks, sub-bands energy and standard deviations were cascaded to form feature vectors, and the similarity metric was Canberra distance. The performance of retrieval system was compared including original contourlet transform, non-subsampled contourlet transform, semi-subsampled contourlet transform and CCT under the same system structure.

该系统采用的复数轮廓波变换由双树复小波变换级联临界下采样方向滤波器构成，特征向量采用子带系数的能量和标准偏差连接而成，以Canberra距离为相似度度量标准；比较了基于同样架构的基本轮廓波变换、无下采样轮廓波变换、半下采样轮廓波变换和CCT纹理检索系统的性能。

Upward dual pairs, dual theorem, positive extension, L-topology, semi-bounded, ordered locally convex spaces.

上偶对，对偶定理，正延拓，L-拓扑，半有界，半序局部凸空间，局部体空间

They were then shipped on three barges up the Mississippi River from New Orleans to Dubuque, Iowa, where they were delivered to Oelwein on 53 semi-trailer truck loads.

到达新奥尔良后，将其分装在三只驳船上，沿着密西西比河运往爱荷华州迪比克。最后采用53辆半挂卡车运往Oelwein。

These kinds of analytical elements can describe the crack tip fields for the Dugdale model and can also be combined with the ordinate finite elements to form the semi-analytical finite element method.

该类超级单元能够准确地描述基于Dugdale模型的裂纹尖端场，可与普通有限单元相结合，构成半解析有限元法。

Extended the semi-analytical finite element method into the Dugdale model of elastic-plastic fracture mechanics, the analytical elements based on the Dugdale model of mode Ⅰ and mode Ⅱ crack are constructed. The formulas for the stiffness matrices and load vectors of analytical elements are deduced.

将上面的半解析有限元法应用于弹塑性断裂力学中的Dugdale模型，分别构造了基于Ⅰ型和Ⅱ型Dugdale模型的裂纹解析元，并建立了解析单元的出口刚度阵和荷载向量的列式。

Following process and equipment were adopted,a new process of cascade SCOT tail gas treatment,a gas suctior replacing the recycle air blower at start-up,air cooling replacing fresh water cooling for waste steam exhausting pipe, an advanced LD Duiker sour gas burner,a hot-wall burner,a semi-tube distributor reactor.

该装置采用串级SCOT新工艺，气抽子代替开工循环风机，空冷代替排汽筒新鲜水直接冷却；采用先进的LD Duiker酸性气燃烧器；燃烧炉采用热壁，反应器采用半管分布器。

The impact of wind barrier of natural landform and wind barrier of artificial Hippophae rhamnoides on the plants restoration in flat of dumping site of opencast coal mine in the semi arid was investigated through the observations on the plants in the different sectors of dumping site, field experiment and laboratory analysis.

以霍林河露天煤矿为例，通过对排土场不同地段植被的观察、野外小区实验和室内分析的方法，调查研究了天然地形风障以及人工沙棘风障对半干旱地区露天煤矿排土场平台植被恢复状况的影响。

From her mother she inherited warmth of nature and dusky , semi-tropic beauty.

她从母亲那儿秉承了热情的性格和亚热带的那种皮肤微黑的美。

Methods The designed flow chamber had provided flow shear stress at 0.5, 1 Pa (5 and 10 dyn/cm^2) for a period of 1 h, 3 hand 6 h respectively. Semi-quantitive RT-PCR was used to detect the expression of megalin/cubilin mRNA in cultured renal tubular epithelial cells.

应用流室系统提供0.5、1Pa(5、10 dyn/平方公分)的剪切应力处理培养的肾小管上皮细胞，分别作用1、3、6h后，用RT-PCR法检测megalin/cubilin mRNA的表达。

The semi was traveling eastbound on Interstate 40 just before ...

半前往东对州际40刚刚才。。。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。