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The test shows that the butt friction welding process of copper and stainless steel bar can be divided into the following stages approximately: the adhesion at the beginning of friction,friction inside the copper,the expansion of the plastic ring and the friction on the bound surface of copper-stainless steel and the friction in stainless ...

结果表明铜与不锈钢棒料的对接摩擦焊过程大致可分为初始摩擦的粘着;铜内摩擦、塑性环扩展;铜、不锈钢界面摩擦及不锈钢体内摩擦3个主要阶段。在接头形成过程中经历了两次摩擦面的转移。其内容对促进异种材料摩擦焊的接头形成机理研究有积极的作用。

In this paper,the welding technology of vast dimensional flange of telescopic joint at Soleyman Project and the welding methods of the heterogeneous steel s62U and0Cr13Ni5Mo were introduced in detail.

本文详细介绍了电站机组伸缩节超大尺寸法兰的焊接工艺及62U和0Cr13Ni5Mo 异种钢的焊接方法。

Anti-TB bone was made of reconstituted bone xenograftcombined with 4 antituberculosis drugs ( Isoniazide, Rifampicin, Pyrazinamide, Ethambutol ) at certain concentration and encapsulated by gelatin and polycaprolactone.

采用明胶和聚己内酯复合包裹法将异烟肼、利福平、吡嗪酰胺和乙胺丁醇等4种抗结核药物按一定浓度和配比与重组合异种骨复合,制备抗结核骨。

Because of the greater differences between ecies, as o osed to within a ecies, these tra lants have the least chance of working.

和同种移植不同的是,异种之间存在很大差异,从而使得这种移植成功的可能性很小。

On the condition of laser welding lap joint composed of dissimilar materials under the same parameters, the weld width was relatively narrow when the galvanized steel for boarding up.

在相同参数下焊接异种板材搭接接头,当具有镀锌层的钢板为上板时,焊缝熔宽较窄。

Friction stir welding is a new solid state welding technique under the actions of mechanical forces and frictional heat. FSW has many advantages on the aspects of mechanical properties and producing efficiency, such as high strength, low defect, no pollution, etc. FSW can be used to join the buttcover plate and lap jointed sheeting of many materials, such as aluminium alloy, magnesium alloy, copper alloy, etc.

搅拌摩擦焊接是一种在机械力和摩擦热作用下的新型固态焊接技术,在接头力学性能和生产效率上具有较高的优越性,具有低缺陷、高强度以及环保等特点,同时,搅拌摩擦焊接技术可以对包括铝合金、镁合金、铜合金等多种材料的板状构件实现对接或搭接,另外,搅拌摩擦焊接可以较容易实现异种材料的连接。

Results After HBO treatment,it was found that the passive skin allergic reaction in homozygous rats and heterologous mice all suppressed(P<0.01)compared with the control group,the number of mase cells degranulated by casein in abdominal cavity of mice was markedly decreased(P<0.01).On clinical observation,the near effects concerning symptoms and signs in 30 cases after HBO were 98.7%;follow-up 3 years,the effect was 73.7%.

结果 吸高压氧后大鼠同种被动皮肤过敏反应受抑制(P.01);小鼠耳异种被动皮肤过敏反应受抑制(P.01);酪蛋白引起脱颗粒的小鼠腹腔肥大细胞数与对照组比较明显减少(P.01)。30例患者治疗前后症状、体征比较,近期疗效99%,随访3年有效率达74%。

The survival time of the xenografts were monitored.

观察异种移植物的生存时间。

Gene expression of CCR2 and CCR5 and their chemokines in transplanted FPP xenografts was evaluated by real-time PCR.

在移植了FPP异种移植物以后的CCR2,CCR5及它们的趋化因子的基因表达可通过实时PCR来评估。

In vivo MR images were obtained using mouse models with subcutaneous tumor xenografts grown from implanted KB cells.

借助用KB细胞建立的皮下肿瘤异种嫁接的小鼠模型,在活体内获得了磁共振影象。

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