伸力

Following results have been obtained: a novel method of surface modification of transparent silicon rubber with plasma to adapt it to cell adherence and spread was developed, and a set of elastic matrix cell culture devices based on the method was developed; it is found that MSCs oriented 90 degrees to the applied cyclic strain field and aligned, the reaction of MSCs to the cyclic stretch is related to the loading regimen and aging of MSCs, cyclic strain may lead to differentiation of MSCs.

主要研究结果有：研究出利用等离子体对硅胶进行表面改性以利于细胞粘附和铺展的新方法，并基于此研制出了可动态加载的应变均匀的新型弹性基底细胞培养装置。发现MSC在受到交变拉伸加载后沿与受力垂直的方向排列的现象，该现象与加载的条件和MSC的老化程度有关，交变拉伸加载可能有促进MSC分化的趋势。

When we use stance to perform a punch, we can easily throw out a powerful punch at the short distance by twisting of the haunch with stance.

长桥发力意思就是当您的手明明已经伸至最长的时候，仍然可以继续发出高扭力的狠劲，我们常常在练跆拳道的人口中听说"发拳力来至于距离"，就是等于他们还未能做到长桥发大。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

It is shown that both strength and delayed fracture resistance of 42CrMoVNb steel increase when its grain size is refined from 20 m to 4 m, but they do not increase when refined to 2 m.

结果表明，随着晶粒细化， 42CrMoVNb钢的强度和缺口拉伸延迟断裂抗力逐渐提高；但当晶粒细化到2 m时，强度和延迟断裂抗力均不再提高。

By methods of literature review, experiments and mathematical statist ics, we study the two different kinds of stretching.

采用文献资料法、实验法、数理统计法对静力拉伸和动力拉伸的实验进行了系统分析与研究。

When printing a drum, as a result of tension and the role of internal stress UN-uniform, picture and text size pages with the base surface of the water closet pedestal and elongation, as shown in Figure 1, which I can't compare the elongation can be calculated by

当印版装到滚筒上后，由于施到的不推力和本质答力的功用不平均，版面上图文尺寸随版基暗不天的倾圯而伸不幼，如图1所示，印版的伸不幼可堵住下式筹算

The line enlarges L/D ratio and widens mixing smelt zone on the extruder screw pot which is specially processed using quality steel.For the change filter system of the flat film stretching line,we apply advanced foreign automatic belt change filter.The bakeboard is changed into foreign advanced hot drawing oven and principal technical index of the line nears international advancing level. The line has the performance of high speed、top yield、 low energy consumption、 good forming quality of the fiber drum.

主要元器件选用欧美等国外优质产品；挤出机配置合金钢硬齿面专用减速箱，螺杆料筒加大长径比和混炼段，并采用优质合金钢特殊处理，过滤系统可选用自动带式换网或双筒长效过滤网，平膜模头采用优质耐热模具钢、衣架式设计制作；提膜、剖丝、牵引采用一体龙门架形式；牵伸加热可选用双风道热风烘箱或保温烘板；牵伸、定型机采用墙板定位，辊筒内置卸荷装置；配置磁传动恒涨力卷绕机。

The surface tension coefficient of water and alcohol experiment is conducted by using Si-resistance-strain gauge and ringlike slice.

通过用万能试验机的加载部分对试件加力来进行材料的拉伸实验，用硅压阻式力敏传感器及环状吊片来进行液体表面张力系数的测定的实验，分析、比较了塑性固体材料和液体在拉伸过程中的共同点。

In order to evaluate measuring uncertainty of tensile testing result of metallic material, the mathematic model of calculating uncertainty is established and different factors of influencing testing result are determined taking rectangle head shorter proportional sample of 18mm Q235B plate as example.

为评定金属材料拉伸试验的结果测量不确定度，以轧制厚度为 18mm的Q2 3 5B板材矩形带头短比例试样为例，建立了不确定度计算的数学模型，确定了影响试验结果的下屈服力FSL、最大力Fm、试样原始厚度a及试样原始宽度b等各项因素，计算出了各种因素的标准不确定度，得出拉伸试验结果的扩展不确定度，并给出最终测量结果的表达式：下屈服强度ReL、抗拉强度Rm的最终测量结果分别为(3 0 5± 5 )MPa和(4 3 5± 10 )MPa。

Through the technological calculation of the wind wheel and the analysis of the exerted force, stress and metal flowing status when drawing forward and backward, the forward and backward compound drawing die was designed and improved in its structure, which ensured the requirement of the part dimensions and eliminated some defects such as the material thickness becoming thinner.

通过对风轮本体的工艺计算及正反拉伸复合时的受力、应力及金属流动状态进行分析，设计并改进了正反拉伸复合模的结构，保证了零件尺寸要求，消除了料厚变薄等缺

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。