截面

The calculation and experiment results show that the maximum lifting pressure performance decreases with the increase in throat diameter of channel of variable section, water flux of low pressure and pressure ratio of steam nozzle, and has its minimum value with water nozzle annular space. The coefficient of maximum lifting pressure performance may be as high as 26. In the design of steam injector, the larger pressure ratio of steam nozzle and the smaller water nozzle annular space are selected, the higher lifting pressure performance could be obtained.

计算及研究表明：极限升压能力随变截面混合腔喉部直径、被升压的低压水流量和蒸汽喷嘴压比增加而降低，随环形水喷嘴间隙的变化出现了最小值；计算得出变截面超音速汽液两相流装置的极限升压能力可达26；在设计升压装置时应尽可能选取较大的蒸汽喷嘴压比和较小的环形水喷嘴间隙。

Based on the characteristics of parameterized design and key technologies of knowledge based engineering, and specially according to the characteristics of the construction, figure, assembly-parameter of bicycle frame design, the article has achieved repeated using of experiential parameter and knowledge by adopting methods such as automatic reading experiential datasheet, computing parameter by making use of program, manual data-input or modifying and so on. Based on analyzing the characteristics of Rear End design and the associated characteristics with Chain Stay and Seat Stay, different design methods are analyzed in detail, and rapidly assembling of Rear End, Chain Stay and Seat Stay is achieved by using the method of combining top-down-assembly with down-top-assembly method. Based on analyzing special technologies and UDF characteristics, the repeated using of different sectional shapes by using UDF technology on the tube section design is also achieved, and this will greatly shorten the time spent on fixing the dimensions and orientations on sketches.

在探讨了参数化设计技术特点和知识工程关键技术的基础上，针对自行车车架设计中的结构、形状、装配参数特点，分别采用了读入经验数据表、参数程序求解、手工录入或修改方法实现车架设计经验参数和知识的重复利用；在分析自行车后叉片设计特点及与平、立叉的关联特性的基础上，对不同的设计方案进行了详细分析，并采用自顶向下和自底向上相结合的方法，实现了后叉片的快速装配定位与平、立叉设计相关联；在分析了特征技术和UDF特点的基础上，将UDF用于管件截面的设计上，使各种截面形状能不断重复利用，大大节省了约束草图尺寸和位置的时间。

According to different axial compression ratio and slenderness ratio, this paper designs 12 types of square section column and 12 types of I section column single-story steel frame structures, and gives overall dimensions and characteristic parameters, then provides data for establishing ANSYS finite element models.

按照不同的轴压比和长细比分别设计 12 种柱截面为方形的单层钢框架和 12 种柱截面为工字形的单层钢框架，给出了单层钢框架体系的总体尺寸及特性参数，为 ANSYS 有限元分析提供建模数据。

The data analysis indicates statistically significant non-reproducibility of the cross sections and their energy oscillating in the two measurements. The experimental probability distributions of the cross sections are systematically wider than a Gaossian distribution with unit standard deviation.

实验结果表明，两次独立测量得到的反应截面的几率分布不是标准的Gauss型，其中，超过标准偏差3倍的几率高达约20％，就是说，截面及其涨落具有统计意义上的不可重复性。

The methodology of representative values is employed for the analysis of a manifold system of coathanger circular die . The results are then used for the computer design of the system.

采用了表征值方法，在对衣架式口模圆形截面的歧管系统进行分析的基础上，提出了对任意截面形状歧管系统的设计原则和计算方法，对衣架式口模的歧管系统实现了计算机辅助优化设计。

The damnification of diagonal section caused by cycle loading is analysed based on the experiment of 19 reinforced concrete beams. The main varied parameters are reinforcement ratio, shear span and times of cycle loading.

在19根钢筋混凝土梁的抗剪试验的基础上，分析循环加载损伤对斜裂缝宽度和斜截面承载力的影响，为损伤后的钢筋混凝土梁斜截面承载力的评估提供依据。

The optical field distribution on the crosssection of the quasirectangle waveguide structure is simulated and compared with that of the rectangle waveguide structure.

理论模拟了这种准矩形结构截面的光场分布情况，并与矩形结构截面的光场分布情况作了对比。

Crosssection structure chemical composition and elements distribution of the film were analyzed by SEM and EPA.

通过扫描电镜和电子探针分析微弧氧化膜的横截面结构、化学成分以及这些元素在微弧氧化膜截面不同位置的分布。

The various section parameters of crystals can be obtained by defining their boundaries in the crosssection.

晶粒截面各种参数均可通过界定晶粒截面边界来获得。

The riser total pressure drop and apparent solids holdup increase with the solids-to-air mass flow ratio, and there is greater effect of solids-to-air mass flow ratio on apparent solids holdups in lower part of riser.

此外，床层总压降和截面平均颗粒浓度随固气质量比的增加而增加，在上升管下部截面平均颗粒浓度受固气质量比的影响比上部大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。