Abstract : in this paper , the stress field in a concave plank being upset is resolved by analytic mathematical method of plastic mechanics , the relation between the geometric parameter ( dimension ratio , concave shape ) and friction shearing stress is determined for upsetting a plank free of tension stress 文摘:本文用塑性力学初等解析法求解了凹形板坯镦粗时的应力场，确定了无拉应力镦粗时坯料几何参数(尺寸比、凹形形状)与坯料端面摩擦剪应力的关系。
3 . in applications , the structure of stabilizing piles with pre - stressed anchor cables can be associated with retaining wall , combined bolting and shotcrete , precast concrete lagging ( plain , troughlike , archlike shapes ) , and so on , which enlarge the application areas of this structure 3 、在实际应用中，预应力锚索抗滑桩可与砌石挡墙、喷锚支护、预制挡板(平板、槽形板、拱形板等)联合作用，形成多种形式的组合结构，从而可扩大这种结构型式的应用范围。
The hydro - chemical damage evolution equation is deduced by cross board model established by author by the method of chemical kinetics ( pwp equation ) . the hydro - chemical damage evolution of a fracture is defined by the variation of board geometry dimension caused by chemical reaction , while a channel by the cros s pipe of the board 水化损伤的演化可用交叉板模型：裂纹面用矩(碟)形板模型表示，裂纹交汇线用溶管线模型表示，可用化学动力学的方法( pwp方程)推导出腐蚀损伤岩体中水化损伤的演化方程。
The results of the limited element analysis and experiment study confirms that both the resisting ended batten and using angle batten in place of plate one could make the laterally stiffness of such member more strong . that maybe provides somewhat practical benefits for designing the twin - wall truss 本文还通过矩阵分析法和模拟试验研究，证实了端缀板的存在对抵抗侧向屈曲有明显提高；而选用角钢代替缀板材料相对于板形板，有助于提高构件的侧移刚度和翘扭转刚度，这对于单轴对称缀板柱的设计也具有一定的实用价值。
By comparing the values of the traditional rolling force model and the prediction model by cmac with the measured ones , the precision of the prediction model by the fuzzy cmac is much better than that of the traditional rolling force model and is more suitable for online use of a multi - roll cold tandem mill controlled by computer , which also meets manufacturing requirement of the field and receives better control effect of the shape and thickness 通过对传统轧制力模型计算值、小脑模型预报计算值与实测值进行对比分析可知，基于模糊小脑模型神经网络的多辊冷连轧机轧制力预报模型具有较高的计算精度，更适合于多辊轧机在线计算机过程控制的应用，满足现场在线生产的要求，取得良好的板形板厚控制效果。
The product of electric furnace fittings including : micro - computer program temperature control instrument 、 refractory brick ( ultra - light weight energy saving brick ) 、 resistance wire 、 electroheat belts 、 electrical heat tube 、 silicon carbide rod 、 furnace bottom plate 、 muffle tank 、 vacuum sealed fan 、 wind wheel 、 axis 、 substructure 、 bin seat 、 flat shape plate 、 box 、 panel 、 weatherstrip plate 、 return air plate 、 bin 、 connection box 、 educe rod 、 thermocouple 、 thyristor 、 porcelain pipe 、 crucible 、 furnace chamber 、 furnace frame 、 charging bin 、 substructure 、 pit furnace cover lifter framework ( sole design ) and otherwise 电炉配件产品包括：微电脑程序控温仪、耐火砖（超轻质节能砖） 、电阻丝、电阻带、电热管、硅碳棒、炉底板、马弗罐、真空密封风机、风叶、轴、底座、料筐座、扁形板、箱体、面板、挡风板、回风板、料筐、炉栅、接线盒、引出棒、热电偶、可控硅、瓷管、坩埚、炉膛、炉门、炉框、装料筐、底座、井式炉盖升降机构（独家设计）等。
