形状不同的

This paper mainly introduces the electrical characteristics of the Robot MOSFET Arc Welding Invertor and its arc welding technological properties. Emphases are laid on the analyses of the current and voltage wavefonns of the main circuit as well as the energy loss of the MOSFETs. The different static characteristic curves and parameters of electrical reactance are also discussed.

研究了机器人场效应管式弧焊逆变器的电气性能和弧焊工艺性能，并着重对其逆变主电路电流、电压波形、管组功耗进行分析研究，以及探讨如何采用不同形状的外特性曲线与合理设计电子电抗器的电参数，从而提高弧焊机器人对不同工件开关、不同弧焊方法的适应性，实现贫飞溅的焊接。

Based on the structure of a non-tracking internal-concentrator solar PV-thermal tube collector and the absorber design requirements, the optical design for the compound parabolic concentrator with half cylinder absorber is proposed to improve the solar energy efficiency. Matlab software was used for the optimization and simulation of the concentrator curve and shape. The curve equation of concentrator for maximum incidence of light of the collector was obtained; and the installation locations for CPC/half cylinder absorber and the necessary CNC processing parameters were optimized.

针对非跟踪内聚光光电－光热复合管的结构及接收器的设计需求，对管内具有特殊形状的半圆柱接收器的复合抛物面聚光器进行了光学设计，并利用Matlab软件对聚光器曲线和形状进行了优化与数据仿真，得到了光热复合管能够得到最大入射光的聚光器的曲线方程、安装位置以及供数控机床加工所需的参数，给出了不同入射角的光线和光强分布图，提高了太阳能的利用率。

The results showed:among the 7 isolates, five isolates of HY3、GY1－3、ZJ1－1、HP1、FC3 had same colony shape, irregular shape, liquidlike, slimy, opacity with smooth surface;the other two isolates had same shape, irregular shape, dry, opacity with coarse surface. By inoculating eucalyptus with the 7 isolates, the plants were infected apparently, and the young plants of eucalyptus in control experiment with tap water were not infected. By cultivating eucalyptus cuttings with the bacterial suspensions without EPS, the incidence of disease was very distinct,but compared with the former bacteria suspension,the incidence of disease has decreased at different degrees. By screening out two isolates of strong pathogenicity and two isolates of weak pathogenicity from the 7 isolates,making the bacterial suspensions with them to inoculate the young plants of eucalyptus, two treatments of cutlings and ramets with rats were set with 5 repetitions in every treatment, the results of data analysis showed: for the cutlings, the bacterial contents in upper and middle parts、upper and lower had significant difference;for ramets with roots, the bacterial contents in upper, middle parts, lower had significant difference between each other; For both the cutlings and ramets with roof, the bacterial contents in xylem and phloem had significant difference. The interaction between vertical and horizontal parts for the bacterial content had significant difference. For the two isolates of HY3 and 93B which were screened out at last,their activities of the cellulase were: 1.955ug/ and 1.288ug/ respectively, and had significant difference; the activities of pectase were: 1.325 ug/and 1.24ug/ respectively, and had no significant difference. The content of EPS extracted from the two isolates of HY3 and 93B was very different: 7.08x10-8ug/cell and 5.17x10-8ug/cell.

结果显示：7个菌株中，其中5个菌株HY3、GY1－3、ZJ1－1、HP1、FC3的菌落形态相同：不规则形状、流体、粘性、不透明、表面光滑；另外2个菌株93B、GN1菌落形态相同：不规则形状、干燥、不透明、表面粗糙；用7个菌株接种剪根桉树苗，发病情况非常明显，而自来水对照实验中桉树苗却不发病；无EPS菌悬液培养桉树剪根苗，发病率也很明显，但是相比原菌液，则发病率有不同程度的下降；从7个菌株中间筛选出来2个强致病性菌株和2个弱致病性菌株，用它们配制菌悬液培养桉树苗，设置剪根和不剪根两个处理，每个处理设置五个重复，数据分析结果显示：对于剪根苗，上部和中部、上部和下部的含菌量有显著的差异，中部和下部含菌量差异不显著；带根苗，上部、中部、下部含菌量彼此之间差异显著；不管是剪根苗还是带根苗，木质部和韧皮部含菌量之间的差异都非常显著；上中下与木韧交互作用中，含菌量差异非常显著；最后筛选出来的强弱2个菌株HY3和93B，它们的纤维素酶活性分别为：1.955ug/和1.288ug/，具有显著的差别；果胶酶的活性分别为：1.325 ug/和1.24ug/，没有显著的差别，而且HY3和93B两个菌株细胞分泌的胞外多糖的含量差异很显著，分别为：7.08×10-8ug/cell和5.17×10-8ug/cell。

An experiment is conducted to understand the effect of high molecular polymer fluid on the flow measurement using rotameter. In the experiment, the rotameters, which are composed of different floating elements with different shapes and materials in measuring tubes, are employed to measure the high molecular polymer fluid with viscosity from 1 MPa·s to 2 692 MPa·s. Through analyzing the impact of high molecular polymer fluid on the different rotameters, a general rule is obtained for measuring high polymer fluid using rotameter.

为了了解高分子聚合物黏性溶液对浮子流量计流量测量的影响，采用由不同材料与不同形状浮子构成的浮子流量计分别对动力黏度从1 MPa·s到2 692 MPa·s范围的高分子聚合物溶液进行流量测量，根据对不同浮子流量计受黏性影响实验的分析，获得了高分子聚合物黏性溶液对浮子流量计测量影响的规律。

A selection of interesting tiny vases of different sizes and shapes, from different countries, is important.

选择从不同地区的，各种各样的有趣的小花瓶，还是不同大小，不同形状，也是很重要的。

Raft foundation can be analyzed by this program. And interaction of raft foundation in different plane shape and different thickness with soil that simulated by Winker or two-parameter soil model and high-rise building superstructure can be computed and analyzed. The program provides a new and effective analysis tool for the practice of high-rise building raft foundation engineering.

针对上述各种计算理论及分析内容，自行编制了相应的面向对象计算程序PIASRFS-2007，程序用C++语言在VC++平台中编制，采用该程序可以采用无网格法对筏板基础进行计算分析，并能对不同平面形状、不同厚度的筏板基础与Winkler、双参数弹性地基及高层建筑的不同上部结构进行三者的共同作用计算分析，该程序为高层建筑筏板基础工程实践提供了一种新型有效的分析手段。

The simulation results show that the die swell rate of height direction is greater than that of width direction. Due to the difference of material characteristic of the two polymers, the end section shape of coextrusion is dissymmetric drum. The coextrusion interface would be change during the extrusion swell process.

有限元模拟结果显示：聚合物在离开方形口模后，熔体高度方向的挤出胀大率明显大于宽度方向的胀大率，且两种熔体的挤出胀大率不同，熔体术端截面形状为不对称的鼓形；在挤出胀大段，共挤出界面的形状和位置会发生变化。

Targets are extracted from the images according to their size, shape, intensity, etc. An improved method to identify every coded target is proposed. The gray scale centroid algorithm is applied to get subpixel locations of both uncoded and coded targets.

该算法首先根据标记点的尺寸、形状、灰度变化及位置分布等特征提取目标；然后利用非编码元与编码元的不同形状与灰度特征，提出一种改进的编码元自动身份识别方法，同时实现非编码元与编码元的分类；最后采用质心法进行标记点的精确定位，达到亚像素精度。

The explicit finite element method was adopted to simulate and calculate the crash performance of thin-wall structures of various thicknesses,cross-section shapes and foreordained deformations.

利用显式有限元方法对不同厚度、不同截面形状以及不同预变形的薄壁结构碰撞性进行了仿真计算，通过分析比较，得到结构参数对碰撞性能的影响以及薄壁结构的基本碰撞规律，为车辆耐碰撞性能的设计奠定了基础。

But there existed significant difference in the form of leaf base , leaf length, leaf width and micro-morphology characteristics of the leaf epidermis（the cell number of the adaxial epidermis and abaxial epidermis, the stomal length,the stomal width,the stomal density）.ConclusionIt exhibited mutation in morphological characteristics of the leaf and micro-morphology characteristics of the leaf epidermis in a long-term cultivation process.

结果不同叶型的冬凌草其表皮细胞的形状、气孔类型均相同，但其叶基形状、叶长、叶宽、叶表皮微形态特征（上表皮细胞和下表皮细胞的数目、气孔长度、宽度及气孔密度等）存在明显的差异。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。