块度

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the molds joint face is the balls neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the castings feeding;the mold use gravity to lockwasher itself;the cores material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the molds processing technology,this design adopt the roughs two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three.dimensional animation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

The metal mold design nowadopt a form of one mole but six cayities ,this way can improve theefficiency;the mold's joint face is theball's neutral plane,that makes the mold openedconvenient;In the gating,the runner and the riser is the same ,andthis design adopt scum riser,that make sure a better routing andmake sure the casting's feeding;the mold usegravity to lockwasher itself;the core's materialis quartz sand,and spread high tempearature resistant dope on it;Inthe design, same taper in the guide bush of the core box is neededto make sure open the mold easily;The insert blocks of the core boxare made by numercial control processing,this way reduce the costof production; the scale division positioner make sure the samespecification has better interchangeability,also,as all themachining can be finished on the general machine tool,it make thecost low,so it can be spreaded abundant in the medium and minorenterprise;when workout the mold's processingtechnology,this design adopt the rough's two endplane as benchmark,the ball cavities are machined by scale divisionpositioner;then use Autocad,Pro/e to draw planar and threedimension blueprint,use Pro/e to make three-dimensionalanimation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

Based on this,the effect of firing schedules on the opacification was also observed.

采用DSC、XRD和TEM等测试手段，研究了分相-析晶乳浊熔块在热处理过程中的相变过程，并在此基础上研究了不同的烧成制度对釉面乳浊度的影响。

Gas Production Engineering Research Institute,Southwest China Oil Gas field Company,Guanghan 618300,China）Abstract: Basic principle of time of flight diffraction method was described. Two scan modes D scan and B scan were discussed and the phase characteristic of oscillogram and grey-scale map was also studied. Formula to calculate the location and size of defects was given. The image analysis was carried on three typical defects on standard blocks.

摘 要：描述了超声波衍射时差法的基本原理，讨论了平行扫查和非平行扫查两种扫查方式，研究了波形图和灰度图两种缺陷图谱的相位特征，推导了缺陷精确定位定量的计算公式，并通过标准试块试验对三种典型缺陷进行了图谱分析。

The distribution pattern of ten Tsuga tchekiangensis populations in the Mang Mountain were analyzed by the variance/mean ratio method,and their aggregated intensities were were measured by using the following indices:negative binomial parameter,dispersal index,clumping index,crowing mean index and patchiness index.

采用方差/均值比率法对10个南方铁杉种群的分布格局类型进行了分析，同时，采用负二项式参数、扩散性指数、丛生指数、平均拥挤度指数和聚块性指数计测这些种群的空间聚集强度。

Rigida population were clumping, and v/m ratio, negative binomial parameter, patchiness index, clumping index, mean crowing index and Morisita＇ s index were 1.98, 1.84, 1.54, 0.98, 2.79 and 1.54 respectively.

结果表明，杜松种群的空间分布格局为聚集分布，其v／m值、负二项参数、聚块性指数、丛生指数、平均拥挤度和Morisita指数分别为1.98、1.84、1.54、0.98、2.79和1.54。

The quadrangular levelling system is adopted to improve the parallelism of slides. The press is controlled by PLC and supervised by person-computer interface.

压机而采用四角调平系统来提高滑块的平行度，利用PLC可以非常简便的实现对这一系统的控制，并且结合人机界面可以非常直观的对系统进行监控。

In order to reduce the computational complexity of the fast motion estimation and improve the performance of motion compensation,a block-matching algorithm of mixing diamond search and adaptive rood pattern search has been proposed.

为了减小快速运动估计算法的计算复杂度和改善运动补偿的性能，提出了一种基于菱形搜索和自适应十字模式搜索两种方法混合使用的块匹配算法。

And a new method of image stabilization is presented in order to quickly solve the problem of the translational and rotational motion between image sequences.First,the translational motion is calculated and compensated based on the gray projection algorithm.

针对视频图像序列的非稳特性，研究了电子稳像算法中灰度投影算法和块匹配算法各自的不足之处，提出了一种快速补偿视频图像序列间平移及旋转运动的稳定成像算法。

Methods: 50 ml of 50% magnesium sulfate solution, poured into the搪瓷碗, the hot water 10 milliliters, and then use gauze or a small towel (3 alternate use) with liquid After wet, dry slightly twisted so that they would not drop for the degrees, deposited in scleroma Department.

取50毫升50%的硫酸镁溶液，倒入搪瓷碗内，加热水10毫升，然后用纱布或小毛巾(3块交替使用)用药液浸湿后，稍拧干，以不滴水为度，敷在硬结处。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。