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In 3-D surface profilometry by means of high-speed laser sheet, since the increase of distance between two optical cross-sections, the discontinuity on the object surface will lead to an erroneous triangular facet and distorted surface reconstruction.

在高速光截法三维面形测量中,由于光截面之间距离增加,物体表面的不连续性将容易导致错误的三角网格化,引起面形重建的畸变。

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This thesis presents a raised panel method based on NURBS ( Non-Uniform Rational B-Splines) for predicting the wave pattern and wave resistance of a ship, with forward speed, piercing the free surface of an ideal fluid.

本学位论文以基于非均匀有理B样条(Non-Uniform Rational B-Splines,NURBS)的面元法计算排水型船舶的兴波波形及波形阻力。

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Nowadays batch type equipments for large calcium carbonate, such as high speed kneader ( mixer blender), grind machine and so on, are used as powder surface modification equipments. But the quality is hard to be controlled, and product performance fluctuates a lot.

目前,重质碳酸钙用粉体表面改性设备常用高速捏合机(混合机)等间歇式设备,质量不容易控制均匀,产品性能波动大。

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The cutting experiments are carried out to study the variation of turning force, cutting temperature and surface roughness with different cutting parameters during high speed dry turning hardened steel with the ceramic cutter.

通过改变高速车削淬火钢(Cr12)的切削用量,对切削力、切削温度、加工表面质量等进行了较为系统的研究。

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Analysis of surface defects and cold-heading cracks of low carbon steel high speed wires

低碳钢高速线材的表面缺陷及冷镦开裂原因分析

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Laser can print various characters, symbols and patterns on the plat surface or cambered surface, so high-speed laser marking can realize the real-time marking on the product assembly line, with the advantage of highly marking accuracy, fast processing speed, and so on.

激光可以在平面或者弧面上打印各种文字、符号和图案,高速打标可在生产线上实现实时打标,具有打标精度高、加工速度快等优点。

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As a result, high speed milling parameter can achieve better workpiece surface quality.

实验表明, 高速铣削能够获得较好的工件表面质量.

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The proposed approach can provide a satisfactory presentative model at improved computation speed ofthe selection of the response surface function approximation.

所提出的方法,以改善的计算速度,为响应表面函数近似的选择提供了一个满意的模型代表。

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After test, the surface of the braking disc is bright and clean, has no any damage and cracks that meets the travel requirements for high speed trains.

试验结果,刹车盘盘面光洁,无任何损伤和裂纹,能满足200 ̄250km/h高速列车的运行要求。

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Soil water content has notable influence on the materials degradable and the higher water content has, the faster degradable speed is. The material on the sand surface is degraded faster than which in the sand.

土壤水分含量对材料降解也有显著影响,且水分含量越高,降解速度越快,且沙表快于沙内。

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This material can degradable rapidly in the hot and humid environment. And the higher temperature has, the faster degradable speed is. The material in the sand is degraded faster than which on the sand surface.

PLA纤维材料在高温高湿条件作用下能够迅速降解,温度越高,降解速度越快,且沙内快于沙表。

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Reliability analyses of anomalies of ncep/ ncar reanalysis wind speed and surface temperature in climate change research in China

NCEP/NCAR再分析风速、表面气温距平在中国区域气候变化研究中的可信度分析

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Spraying equipment along with roller axial movement speed determines the roller surface coating thickness.

喷涂装置沿辊筒轴向移动的速度决定了辊筒表面获得的涂布厚度.

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In this paper, with high speed camera, the visualization experiments for the heat transfer characteristics of spray cooling on rectangle capillary microgroove groups surface were carried out.

本文利用高速摄影仪对具有矩形毛细微槽群结构的加热表面进行喷雾冷却的传热特性进行了可视化实验研究。

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Body-fitted hexahedron grid was obtained of high speed train head surface based on mapping approach.

利用映射法生成高速列车头部流场的六面体贴体网格.

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The controlled speed determines film thickness and overall coating efficiency, and its surface finish determines the texture of the coating.

速度的控制决定薄膜的厚度和整体涂布的效率,并且表面的光滑决定涂层的手感。

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surface wind speed analysis is an important part of climate change analysis.

地上风速变化量分析是气候变化分析的重要内容.

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