查询词典 surface area

Area and circularity act as two elements of the eigenvector for they can remarkably characterize the surface area of the bubbles.

由于分类的依据是气泡表面积的大小，确定了圆面积和圆形度两个最能表征类圆形表面积的分量组成分类特征向量。

Moreover, human activities play a more and more important role in the development of tidal flat. The concentrated coastal engineering change the dynamic environment of the tidal flat, and the exploitation of oil, natural gas and groundwater results in surface subsidence in the coastal area. In addition, sea level rise and the accompanied increase of storm surge frequency and intensity, will strengthen the erosional process, reduce the tidal flat area, coarsen the sediment, made the slope steep, and cause other environmental effects.

人类活动的环境效应对渤海潮滩发育的作用越来越明显，环渤海地区密集的海岸工程将改变原始的潮滩动力环境；石油、天然气、地下水的开采会导致海岸带发生地面沉降；海平面上升以及与其相伴随的风暴潮作用频率与强度的增加都将会使渤海潮滩的侵蚀过程加强、潮滩面积缩小、滩面物质粗化、坡度变陡，并产生一系列的相关的环境效应。

Methods Seventeen cases of open skull fracture were selected(8 cases of 3-4cm defective area,6 cases of 5-6cm and 3 cases of 7-8cm),under only one routine debriedement all cases were used with DHDM 2-6g according to the range of defective area and mixed with smashed bone pieces grinding into 3-5mm in diameter,scattered it on the dure mater surface then skin flap was overlapped and sutured in layers.

方法对17例开放性颅骨骨折病例(伤后24小时内)常规清创处理，同时将创伤区粉碎之颅骨用骨钳咬碎成3～5mm颗粒，与制备好的脱钙人牙基质2～6g均匀混合，平铺在颅骨缺损区的硬脑膜上，覆盖头皮，分层缝合。

The whole process of the experiment was visualized and recorded in the tape through an intravital fluorescent microscopic system. The dynamic process of thrombus formation was digitized using a multimedia computer system. With a specially developed image processing software, initiation time of thrombus formation, totally occluded time, and the time course changes of normalized thrombus length, thrombus height, cross area, thrombus surface area and thrombus volume were measured quantitatively. Besides, the growth rate of platelet thrombus in this thrombosis model was discussed.

利用视频多媒体系统和自行开发的计算机图象处理系统，对血栓生长的动态过程进行图象的采样、处理和分析，定量测量了血栓开始形成时间、血栓完全栓塞时间，以及归一化后的血栓长度、血栓高度、血管狭窄截面面积、血栓表面积和血栓体积等指标的时变曲线，并对光化学法致栓模型中血小板血栓的生长速度进行了讨论。

The whole process of the experiment was visualized and recorded in the tape through an intravital fluorescent microscopic system. The dynamic process of thrombus formation was digitized using a multimedia computer system. With a specially developed image processing software, initiation time of thrombus formation, totally occluded time, and the time course changes of normalized thrombus length, thrombus height, cross area, thrombus surface area and thrombus volume were measured quantitatively.

利用视频多媒体系统和自行开发的计算机图象处理系统，对血栓生长的动态过程进行图象的采样、处理和分析，定量测量了血栓开始形成时间、血栓完全栓塞时间，以及归一化后的血栓长度、血栓高度、血管狭窄截面面积、血栓表面积和血栓体积等指标的时变曲线，并对光化学法致栓模型中血小板血栓的生长速度进行了讨论。

Based on the summarizing of the exiting algorithms of the texture mapping and antialiasing, this paper goes deeply into the basic theory and processing of texture mapping. The texture compress algorithm which can satisfy the need of the memory and time is given for the stochastic sampling in the inverse texture mapping; the geometry transformation in the texture mapping are discussed and the concepts of the unitary parametrization and the patch parametrization is proposed, some kinds of the unitary parametrization methods of parametric surfaces and the geometry transformation in the patch parametrization are also presented; in order to solve the aliasing in the parametrization of intermediate surface-sphere in two-part texture mapping, an area-preserving transformation is presented also; to improve the quality of the graph the aliasing in the texture mapping is analyzed from the aspect of signal process, and the modified summed-area tables algorithms is proposed; the distortion of the scanline conversion algorithms under perspective transformation is analyzed and the proper interpolation algorithm is presented so the aliasing problem of the polyhedral object after the unitary parametrization is efficiently solved.

本文在总结现有的纹理映射和反走样算法的基础上，深入研究了纹理映射的基本原理与过程，根据反向纹理映射对纹理随机采样的特殊要求，提出了一种可满足存储空间和寻址时间的纹理压缩存储算法；通过对纹理映射中几何变换理论的进一步深入探讨，提出了整体参数化和面片参数化的概念，并给出了参数化曲面的各种整体参数化方法和面片参数化的几何变换形式；针对现有的两步映射算法所存在的中间曲面—球面的参数化问题，提出一种等积映射方法，较好地实现了由非参数化面片拼接而成的多面体表面的纹理映射；从信号采样的角度深入分析了纹理映射中走样产生的原因，提出了改进的区域求和表算法，使图形生成的效果有所提高；还分析了一般的扫描线算法在透视变换中所存在的问题，提出了一种正确的插值算法，从而解决了整体参数化后多面体表面纹理映射的几何变形问题。

Root surface area and leaf area have isochronism also, both of them interrestriction and interpromomtion.

玉米根系表面积与叶面积在生育期内也具有同步变化规律，二者相互制约，相互促进。

The results show that the new jet area formed by lateral jet minishes the coverage area of vortex at the bottom, and it plays an active role in cleaning the bottom; driven by the lateral jet, shear stress and pressure difference increase on cutting surface, which helps inhibit the growth of balling and cooling blade to improve bit performance.

研究结果表明：侧向射流形成新的射流区，减小了井底漩涡的覆盖面积，对井底清岩能起到积极作用；在侧向射流带动下，刀翼切削面的剪切力、压力梯度增大，利于抑制泥包的成长和冷却刀翼，提高钻头性能。

The experimental results show that the surface area and micropore area of the active coke increases with activating time.

利用XPS等分析手段对在电加热转炉上不同活化时间下制得的活性焦性质进行了研究。

And the ratio of micropore area to surface area increases too.

结果表明，制得的活性焦比表面积、微孔孔容随活化时间增加而增加。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。