查询词典 mesh size

The paper mainly introduces the physical property,microscopic structure and the-200 mesh grain size distribution of FeNi powder catalyst prepared by atomization method.

文章主要介绍了气雾化方法制备F eN i粉末触媒的物理特性、显微组织结构和-200目F eN i粉末触媒的粒度组成。

This method uses all noisy datapoints directly to implement triangulation and dispenses with smoothing and datareduction process, which may lead to loss of geometric character. Moreover, thismethod is of lower complexity than other triangulation and the amount of vertexes inmesh can also be calculated, so we can control the size of mesh in advance. At last, apractical example is given to prove its effectiveness.

这种方法利用全部数据点信息进行网格剖分，无需对数据进行平滑、精简等预处理，避免了因平滑或精简而丢失重要的几何信息的可能，这种方法不仅比现有三角网格剖分算法降低了算法复杂度，而且具有可以直接处理带有噪声的数据，网格规模可控，生成的三角网格形状较好等优点。

According the known structure of MELs and the composition of broth, the separate and purify process of MELs was studied with silica-gel chromatography and the optimum conditions were: silica gel particle size 200 mesh, washing solution chloroform-acetone mixture (7: 3 for MEL-A, 6: 4 for MEL-B), washing rate 0.25ml/min, washing amount 400ml solvent/g MEL.

1根据已知生物表面活性剂MEL的结构特点和发酵液组成，在提取得到MEL粗制品的基础上，采用硅胶色谱分离技术，确定了MEL的最佳分离纯化条件：硅胶粒径200目，洗脱剂采用氯仿-丙酮混合溶剂，洗脱剂配比为7∶3、6∶4，洗脱速率为0.25ml/min，洗脱剂用量为400ml/gMEL。

The foundation soil is divided for finding the ultimate bearing capacity of a foundation with given buried depth and size. Supposing a uniform load acts on the foundation, Mindlin's integral formula and comer points method are used to get extra stress of every mesh knot by MATLAB program, then the principal stress is found. Combining with failure criterion, MATLAB program is used to find coordinates of points which are destroyed. Using graphic processing function of MATLAB, the failure points are showed in the coordinate.

为确定作用在已知埋深、给定基础形状地基土上的极限承载力，对基底下的土体进行网格划分，先假定一均布荷载作用在此地基土上，运用明德林解的积分公式，结合角点法，编制MATLAB语言程序，求出每个网格节点上附加应力，进而求得每个网格节点上主应力，根据破坏准则，结合程序找出破坏点的坐标，利用MATLAB的图形处理功能，把破坏点的坐标在坐标图中显示出来。

Optical fiber communication is transferring form point-to-point transmission to mesh network. Traditional optical-electronical-optical transformation limits the data rate and adds the cost. With reconfigurable optical add/drop multiplexer for signal switching and routing, the OEO transformation can be bypassed, reduceing equipment size and cost.

光纤通信由点到点传输向网格化发展，传统的光—电—光转换过程限制了通信速率并导致成本增加，采用可重构光分叉复用器进行光交换和光路由，可以省去光—电—光转换过程，缩小尺寸和降低成本。

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。