查询词典 mechanical efficiency

Abstract］ Objective To Treating the nano-SiO2 particle by silicon coupling reagent, functionalize the SiO2 by making double bond on its surface. Polymerizing on the surface of nano-SiO2 surface by the method called emulsion polymerization, the nano-SiO2 is covered by polymer to get the PMMA-KH-570-nano-SiO2 complex material. Test the surface structure of the surface of nano-SiO2 by FTIR, and test sort of its mechanical performances.Comparing the treated nano-SiO2 which is directly dispended in the PMMA emulsion with the SiO2 without any treatment, we are trying to find an effective method which can not only increase the dispersion of SiO2, but also improve the mechanical performance of the artificial teeth.

目的 通过硅烷偶联剂KH-570处理SiO2纳米粒子，向其表面引入双键使其功能化，采用乳液聚合的方法在SiO2纳米粒子表面进行接枝聚合，实现高分子对SiO2纳米粒子的表面包覆处理，制得PMMA－KH-570－SiO2纳米复合材料，采用FTIR对SiO2纳米粒子表面结构进行了表征研究，并且测定了它的多种机械性能，与表面处理过的SiO2纳米粒子直接分散至PMMA乳液中制得的复合材料、未添加任何增强物质的空白组进行比较，探索一种能够提高SiO2在基体中的分散性，为义齿复合材料的研究和开发提供理论依据和参考。

Through dynamic mechanical analysis and thermal gravimetric analysis, mechanical property and thermal performance of a-BPDA-PI were tested.

联苯型PI除了具有优越的热稳定性，耐热氧化性，加工性能，光电性能和优异的力学性能外，还克服了均苯PI难于加工的缺点[2]。

However, the processing technologies of stitched composites are relatively more complicated. Stitching has negetive effect on some inplane mechanical properties, and the advantage of great interface mechanical properties cannot be brought into play under hygrothermal conditions.

但是， 缝合复合材料的工艺相对比较复杂，缝合对层合板的部分面内力学性能存在一定的负面影响，而且在湿热环境条件下其层间强度高的优势无法发挥。

In order to investigate the effect of different parts and radial directions on the mechanical properties and dir-dried density of plantation wood,the mechanical properties and air-dried density of plantation-grown Castanopsis hystrix and Betula alnoides at different parts and radial directions were studied.

为了研究树木南北向与径向位置的变化对人工林木材力学性质与气干密度的影响，该文通过对红锥、西南桦人工林木材南北向、近髓心和近树皮2个不同径向位置的力学性质以及气干密度进行测定，分析了南北向和不同径向位置2个因素对两种木材力学性质和气干密度的影响，以及木材密度与抗弯强度、抗弯弹性模量、顺纹抗压强度的相关性。

Lubricative bad make mechanical friction intermetallic direct cause of mechanical failure, the consequences will be worn.

润滑不良使板滞金属间间接摩擦变不败摆撤板滞障碍，不败果不兵是磨损。

Job Requirement: 1、Specialist skills, machinofacture major and related major; 2、More than three years experience in mechanical design; 3、Familiar with the products of the manufacturing process, processing technology; 4、Familiar with the design about the mechanical parts; 5、Skilled use Pro/E to draw 3D and 2D drawings; 6、Proficiency in MS-office; 7、Ability of reading English specification and manual of equipment.

任职要求： 1、专科以上学历，机械制造或相关专业； 2、三年以上机械设计经验； 3、熟悉产品的制造工艺、加工工艺； 4、熟悉机械部件的设计； 5、熟练应用Pro/E制作三维效果图及二维工程图； 6、熟练操作办公软件； 7、能够看懂英文资料和说明书。

Effects of nickel content and mechanical alloying parameters on martensitic transformation during mechanical alloying of Fe-Ni as well as the mechanism were studied.

研究了Ni含量、机械合金化工艺参数对Fe-Ni机械合金化过程中马氏体相变的影响及其机理。

And it can be used to connect lower mechanicalnesw graphite,can be used to connect lower mechanicalness graphite,ceramics or glass pipeline,and as supply＆drain stuff pipe for tanker,store pot,vesssl or used to nalance pipeline displacement, dimension change or used to balancepipelinedisplacement,dimension change or eliminate high frequency mechanical vibration causeed by climate or other frequency mechanical vibration caused by climate or other reasons.

波纹软管通过特殊的加工方法，改变了以往管道不能弯曲的特性，它可用来连接机械较低的石墨、陶瓷或玻璃管道，可作槽车、贮藏、容器或反应釜的给、排料管，可进行管道错位连接或用来平衡因气候或其它原因引起的管道位移、尺寸变化或用来消除高频机械的振动。

Both mechanical alloying and hot pressing technologies were successfully used to get dense, microgranular Laves phase TiCr〓 with homogeneous composition and structure, and the room temperature mechanical properties of the Laves phase TiCr〓 were greatly enhanced.

首次采用机械合金化+热压技术成功地得到了致密的、成分和组织均匀、具有微晶结构的Laves相TiCr〓，极大地提高了Laves相TiCr〓的室温力学性能。

To meet the need of improving the welding quality, the microstructure and mechanical properties of the welded joints and the productivity, pure aluminum plate 99.60 is used in the experiment. Combined with micrographic analysis, the effects of electron beam welding on its mechanical properties ,such as strength, hardness and plasticity are studied in this paper.

本文针对应用越来越广泛的纯铝Al99.60，以及对其焊接质量、接头性能及生产率提出的新的要求，结合金相分析，探讨了电子束焊接对其强度、硬度、塑性等基本力学性能的影响规律。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。