多管的

Results showed: in Podocarpus leaves, there is only one midrib, the xylem tracheid of midrib vascular bundle is multi-form, transfusion tissue belongs to Cycas-type and transfusion tracheids are isodiametric, the accessory transfusion tracheids between palisade tissue and sponge tissue are developed; in Nageia leaves, there are plenty of parallel leaves, the xylem tracheids of each vein are relatively simple, transfusion tissue belongs to Taxus-type and transfusion tracheids are longer in longitudinal section than that in transverse section, the accessory transfusion tissue between palisade tissue and sponge tissue is absent.

结果表明：罗汉松属叶1条主脉，主脉维管束木质部管胞发达，转输组织为苏铁型，转输组织管胞等径，栅栏组织和海绵组织之间的副转输组织管胞发达；竹柏属叶多条平行叶脉，维管束木质部管胞相对不发达，转输组织为红豆杉型，转输组织管胞纵向伸长，栅栏组织和海绵组织之间不存在副转输组织。

About 48%(90/194) were below 29 years of age. Ninety-nine of 194 cases had either radiotherapy alone or supplementary treatment with radiotherapy following surgery. We analyzed multiple prognostic factors. The factors of importance included postoperative radiotherapy; female in glioblastoma multiforme; the primary tumor dose above 5000 rads and/or whole brain irradiation in malignant astrocytoma and glioblastoma multiforme; the primary tumor dose above 4500 rads in ependymoma, medulloblastoma and oligodendroglioma; and spinal axis irradiation above 2000 rads in ependymoma and medulloblastoma that produced a better prognosis than in other groups.

男与女之比例为2.7比1，年龄分布自1至81岁，平均年龄33.3±19.3岁，中值年龄为34岁，29岁以下占48%(90/194)，其中99例单独或手术后辅以放射腺治疗，分析同种脑瘤的预后因素，其中多形神经胶母细胞瘤有手术后放射线治疗或女性，多形神经胶母细胞瘤合并星细胞瘤原发肿瘤剂量5000雷得以上或曾全颅腔照射，神经管胚细胞瘤，间胶质母细胞瘤，及室管膜瘤原发肿瘤剂量4500雷得以上，室管膜瘤及神经管胚细胞瘤有脊轴照射2000雷得以上预后均佳，且统计上有显著的差异。

Saint-Gobain Canalisation manufactures 1.7 million tons of ductile iron pipes, laid 15,000km of PAMTM pipeslines worldwide every year.

圣戈班穆松桥在全球拥有 20 多家分公司，年产球墨铸铁管 170 多万吨，每年向用户交付 15000 多公里长的管道系统，其生产的球墨铸铁管、管件、阀门、消防

Saint-Gobain Canalisation manufactures 1.7 million tons of ductile iron pipes, laid 15,000km of PAMTM pipeslines worldwide every year.

圣戈班穆松桥在全球拥有 20 多家分公司，年产球墨铸铁管 170 多万吨，每年向用户交付 15000 多公里长的管道系统，其生产的球墨铸铁管、管件、阀门、消防栓、雨污水排放球墨铸铁管道等产品均

Abundant supply companies, transport facilities, mainly engaged in the production structure of the steel pipe, large diameter side tubes, thick-walled tubes, fluid tubes, in the low-pressure boiler pipe, blast pipe, fertilizer and petroleum cracking tube dedicated pipe, ship tube, electricity use imports of high-pressure alloy pipe and tube, such as various welded varieties you can buy over the past few years has grown in strength and size of enterprise and high-quality products that win the majority of customers trust our company with excellent products, superior services and reasonable the price of the service of our customers.

公司货源充足，交通便利，主要经营各钢厂生产的结构管，大口径方管、厚壁管、流体管、中低压锅炉管、高炉管、化肥专用管和石油裂化管、船舶管、电力用管以及进口高压合金管各种焊管等多个品种任你选购，几年来企业规模不断发展壮大，并以优质的产品赢得了广大客户的信赖本公司以卓越的产品，一流的服务，合理的价格服务于广大客户。

NC bender, tube ends former, tube expanding and shrinking machine, tube cutting machine, Pressing machine, tube boring machine, tube swaging machine,...

后生制造与研发的机种大致分类：； 1管成型系列：管末成型机、多段式管端成型机、缩管机、扩管机、弯管。。。

Series of products: 1, fully automatic production line of Duct flange molding machine, shears, press brake duct and other metal processing equipment. 2, using the entire computer-controlled production lines, specialized in the production mechanism Express rectangle duct flange, Germany duct flange, mechanisms spiral round, flat circular duct, all kinds of bend, the wind pipe fittings. 3, damper, exhaust valves, valve series; 4, muffler, static pressure box, muffler Venetian series; 5, aluminum, teak tuyere, such as stainless steel tuyere tuyere series; 6, Air Shower, Air Shower Channel, clean bench, and efficient delivery of clean air and other series; 7, vertical, horizontal air handling units series; 8, multi-functional modular air handling units series; 9, fan coil series; 10, ventilation, exhaust cabinet series, Fire cabinet centrifugal fan series.

系列产品：1、全自动风管生产线、法兰成型机、剪板机、折弯机等金属风管加工设备。2、采用全电脑控制的生产线，专业生产快速机制法兰矩型风管、德国法兰风管、机制螺旋圆形、扁圆形风管、各类弯头、风管配件。3、防火阀、排烟阀、阀门系列；4、消声器、静压箱、消声百叶系列；5、铝合金、柚木风口、不锈钢风口等风口系列；6、风淋室、风淋通道、洁净工作台、高效送风口等洁净系列；7、立式、卧式空气处理机组系列；8、多功能组合式空气处理机组系列；9、风机盘管系列；10、通风、排气柜系列、消防柜式离心风机系列。

This paper describes and compares 4 streamtube models (single-disk single-streamtube, double-disk single-streamtube, single-disk multi-streamtube and double-disk multi-streamtube models) based on the momentum theory for the hydrodynamic performance prediction of the vertical-axis variable-pitch turbine that may be employed to tap tidal stream energy resources, especially for the prediction of the overall turbine power coefficient.

以潮流发电水轮机的设计为研究背景，分析和总结了基于动量定理方法的四种流管模型(单盘面-单流管模型、双盘面-单流管模型、单盘面-多流管模型和双盘面-多流管模型)在竖轴变攻角水轮机的水动力性能计算中的应用，特别是能量利用率预报方面的应用。

I has a total of nine series over 900 varieties of products, including: W-mouth free for the use of cast iron pipes and drainage pipe, A-type flexible interface with cast iron pipes and drainage pipe, for I used gray iron drainage pipe And pipe fittings, all kinds of high-end decorative and leakage, waterproof deodorant series of anti-theft sealed covers, stainless steel flexible Our expertise, all have carbon steel hoop Elevators, all kinds of iron and steel bucket rain water pipe, cast iron plates and various trench Bizi Non-standard pipe and tube, and other combinations.

我公司共有9个系列900多个品种的产品，其中有：W型无承口排水用铸铁管及管件、A型柔性接口排水用铸铁管及管件、承口排水用灰口铸铁管及管件、各种高档装饰地漏、防水防臭防盗密封井盖系列、不锈钢柔性卡箍、各种碳钢抱箍吊卡、各种铸铁钢制雨水斗及雨水管、铸铁地沟箅子板及各种非标管件和组合管等。

The reticulated vessel which has large cavity has thicker wall due to more elastic fibers and more smooth muscles and its endothelium is cuboidal epithelium which has rotundity karyons. But the reticulated vessel which has small cavity has thinner wall due to less elastic fibers and less smooth muscles and its endothelial cells are flat epithelial cells which have long-shuttle-shaped karyons. In some regions, the ducts are very small in diameter and thin of wall, and they become blood sinus in the end.

管腔大者，管壁厚，弹性纤维、平滑肌纤维多，内膜靠腔面内皮细胞多成立方状，细胞核端位近圆形；管腔小者，管壁薄，弹性纤维、平滑肌纤维少，内皮细胞扁平、排列稀疏，胞核长梭形；一些区域管径极小，管壁极薄，成为开放的血窦，只允许一个血细胞通过。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。