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And the effects of foundation displacement excitation,temperature,amplitude and asexternal damping on the nonlinear vibration of elliptic paraboloid cable net with the comparison between steel cable and carbon fiber cable were discussed.At last the conclusions are obtained that the temperature have great influence on steel cable and bat not on carbon fiber cable,and the vibration characteristics of cable net using carbon fiber cables is superior to cable net using steel.

在把碳纤维索网与钢丝索网比较的基础上，讨论分析了位移激励、温度、振幅、外阻尼等因素对椭圆平面双曲抛物面碳纤维索网非线性振动的影响，得到了碳纤维索网对温度变化不敏感，而钢丝索网受温度的影响却很大，且碳纤维索网振动特性优于钢丝索网振动特性的结论。

Anping Zhicheng letter metal mesh factory is located in "China's Rural screen"- Anping, is a professional committed to the production of metal Hulan Wang, the special-shaped net, box network, quarantine network, network construction, geothermal net, gill rope, hook flowers Net, and other products manufacturer.

安平县志成信金属丝网厂位于"中国丝网之乡"--安平，是一家专业致力于生产金属护栏网、异型网、框网、隔离网、建筑网、地热网、刺绳、勾花网等系列产品的生产厂家。

Main production welded wire mesh, square wire mesh, stainless steel mesh, the network brass, hexagonal, steel net, aluminum-magnesium alloy screens, galvanized, painting screens, plastic screens, deep-processed products wire meshes, as well as various special-shaped net, Hulan Wang , Widely used in petroleum, chemical, construction, civil, food and other aquaculture industries.

主要生产电焊网，方眼网，不锈钢丝网，黄铜网，六角网，钢板网，铝镁合金窗纱，镀锌、烤漆窗纱，塑料窗纱，深加工产品烧烤网，以及各种异型网、护栏网等，广泛用于石油、化工、建筑、民用、食品养殖等各种行业。

This thesis focus on GPS application in magnetic suspension engineering:① the formulation of oblique cylindrical projection is worked out according to characteristics of long distance precise engineering and map projection theory. The author has developed an application to accomplish coordinate conversion from generally used coordinate systems to oblique Maglev Coordinates System.② considering not only project peculiarities but also position of control points, selection of initial points, connection type, selection of repeat baseline and ground observed quantities, GPS network is designed on electronic map and we may extract GPS network information by program developed using Visual Basic 6.0 while the results are stored in control point file and baseline vector file.③estimate accuracy of various GPS networks designed on electronic map by method of 2D restriction adjustment. GPS network simulation design and accuracy estimate come true.④Predominate the rules how connection type , repeat baseline and precise baseline of range finder influence GPS network precision through comparing accuracy of various GPS network. Thereby, the solution how to establish GPS network in long distance precise engineering is figured out.

本论文主要研究GPS技术在磁悬浮工程中的应用：①根据长距离精密工程的特点，从地图投影原理出发，推导出斜轴圆柱投影的应用公式，并编制计算软件，实现从常用坐标系统向斜轴磁悬浮坐标系统的转换计算；②在AutoCAD电子地图上，根据工程的需要，并充分考虑控制点的点位、起算点的选择、连接方式、重复基线的选择和地面观测量的选择等因素，在电子地图上进行GPS网的设计，根据Visual Basic 6.0语言编程，提取出GPS网资料，保存在控制点文件和基线向量文件中；③对在电子地图生成的各种类型的GPS网进行二维约束平差的精度估算，实现了GPS网的模拟设计与精度估算；④通过对各种控制网的精度比较，掌握连接方式、重复基线、精密测距仪基线对GPS网精度影响的规律，解决了长距离精密工程GPS网的建立方法。

Commerce Shop Union has now become one for the general manager and Shop Network to provide free promotion, Shop agents sourcing, Shop and Shop cargo consignment to join a platform for the exchange of information; to provide buyers with a goods shopping guide Shop navigation platform

百商务网店联盟目前已成为一个为广大店长和网商提供免费网店推广、网店代理货源、网店代销加盟及网店货源信息交流的平台；为买家提供了一个商品导购网店导航平台

The combined production of vertical and horizontal wells can make horizontal well production rates be 2 to 5 times greater than unstimulated vertical well rates, but the areal sweep efficiency is less than that of vertical well pattern untill when the perforation ratio is greater then a certain value, which depends on the pattern of the combination. Seven spot pattern of the combination of vertical and horizontal wells has some advantages over others.

当水平井和直井联合面积布井时，在同样的压差下，水平井的产量要高于相应直井井网的直井产量的2～5倍，但只有当穿透比达到一定程度，或水平井达到一定长度时，其波及系数才高于相应直井井网的波及系数（五点法井网的穿透比界限为0.521，七点法井网的穿透比界限为0.430），因而在水平井开发油气田时，必须保证水平井一定的长度，这样从长远的观点，水平井才能显示出优势，对比性分析表明，水平井和直井的七点法联合布井和直井井网以及水平井和直井的五点法联合布井井网相比，具有一定的优势，数值模拟表明，在水平井和直井的联合面积布井的各种方式中，改进的九点井网是一种较好可取的布井方式。

EXPANDED METAL,PERFORATED METAL,HIGH RIBBED FORMWORK,RIBBED LATH,STEEL METAL PLASTER ANGLE BEAD,STEEL LINTELS,FIRE PROTECTION PLASTERING EXPANDED META...

扩张网，冲孔网，不袗网，免拆模板，金属角条，楣梁，菱形网，围篱网，龟甲网，格子板，浪型网，止滑板，。。。

Instant noodles and rice industries; steamed stainless steel mesh belt, all kinds of oil-boxes, hanging drying box, noodle cutter, noodle Salisbury, Fulcrum, molding boxes. 3, all kinds of frozen foods, vegetables dehydration lines of stainless steel conveyor equipment chain, mesh belt, such as Fulcrum. 4, production and sales of imports, domestic food use of various models of PVC, PE, PU belt. 5, glass annealing furnace Net industry belt, mesh belt furnace DECORATED, Bottle Nets lost belt, mosaic mesh belt, specifications have crankshaft-type, direct-axis type, diamond-shaped, double-stranded helix.

同时生产饼干机械，喷蛋机乙型网带及肉食输送乙型网带，进口机器超薄节能网带。2、方便面及米粉行业；蒸熟不锈钢网带，各种油盒、烘干吊盒、面刀、面梳、支轴、成型盒等。3、各种冷冻食品、蔬菜脱水流水线设备用不锈钢输送链条、网带、支轴等。4、生产销售进口、国产各种型号食品用PVC、PE、PU皮带。5、玻璃行业退火炉网带、烤花炉网带、输瓶机网带、马赛克网带，规格有曲轴型、直轴型、菱形、双股螺旋型。

Stainless steel wire mesh, welded wire mesh, hexagonal wire mesh, mine sieving mesh, fence netting, brass wire mesh, conveyer belt, chain link fence, filter parts, metal soft pipe, woven machine.

7D71 不锈钢网，电焊网，六角网，矿筛网，护栏网，黄铜网，磷铜网，紫铜网，金属传送带，勾花网，过滤网组件，金属软管和丝网机器。

Xintai produces and sell stainless steel wire mesh , welded wire mesh , crimped wire mesh , expanded wire mesh, punching hole mesh, brass wire mesh, barbecue grill netting , chain link fence, conveyer belt ,fence netting ,black wire cloth , mine sieving mesh, PVC coated iron wire , barbed iron wire ,.stainless steel wire, galvanized wire, etc.

我厂设备先进、技术力量雄厚，是具有高新技术的丝网生产及深加工的专业生产厂家，多年来，我们坚持信誉至上，质量第一的经营原则，让客户满意是我们的最高标准。我厂生产经营不锈钢丝网、电焊网、轧花网、钢铝板网、铜网、烧烤网、勾花网、输送带、护栏网、黑丝布、PVC、涂塑铁丝、刺绳、矿筛网等各类金属丝网制品。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。