无摩擦的

It is of low friction coefficient,anti-wear,anti-corrosion and low noise,compact and light.

它具有摩擦系数小，耐磨、抗腐蚀性好和无油润滑的特点。

For a finite-security and finite- state financial market with three forms of friction: ask-bid spread, transaction costs and tax, by using the theory of convex analysis and some optimization techniques, a series of necessary and sufficient conditions are established to characterize weak and strong no-arbitrage respectively.

对存在买进卖出价差、交易费和税收三种摩擦和有限个可能的自然状态的金融市场，利用凸分析理论和最优化技术刻划出了强无套利和弱无套利的一系列充要条件，以往许多这方面的结果均是我们的特例。

The structure shown in the figure : The governing body received direct or roller drying cylinder, as the main components of the rotation; After finishing the outside of the sphere, Bottom Cover and soak spherical carbon graphite seal ring joint seal reliable seal friction deputy, Sealing ring in the spherical shell of its annular space sliding, in addition to oil-free bearings and with the close cooperation of Shell, Rotating connector so that the free support, and therefore do not require a high level of accuracy installed; Spherical seal ring wear, Spring means of pressure at any time in advance to receive compensation, compensation for the shell slowly moved backward, accessible through the tube outside the inscription on the line to observe the seals wear; When steam, Oil flows through the media or other spherical sealing ring and oil-free bearings, the formation of thin liquid film, sealing and lubrication, thereby reducing friction and wear, extending the service life.

其结构如图所示：外管体直接接到辊子或烘筒上，为主要的旋转部件；经过精加工的外管本球面、底盖和浸泡碳石墨球面密封环共同组成密封可靠的动密封磨擦副，球面密封环在其壳体内的环形空间中滑动，加之无油轴承与壳体的密切配合，使旋转接头自由支撑，故对装机精度要求不高；球面密封环磨损后，借助于弹簧的预压力随时得到补偿，补偿时壳体缓缓向后移动，并可通过外管体上的刻线观察到密封件的磨损程度；当蒸汽、油或其它介质流经球面密封环和无油轴承时，形成一层很薄的液膜，提供密封和润滑，从而减轻了摩擦和磨损，延长了使用寿命。

The article briefly introduce the basic structure, the way of design and calculation, material and lubricate of the frication type variable speed drives, and taking them as the theory basis of the design of mechanical variable speed drives.

本文简要介绍了摩擦式机械无级变速器的基本结构、设计计算的方法、材质及润滑等方面的知识，并以此作为本次无级变速器设计的理论基础。

Friction on a smooth pin increased in the order: bright, semidull, and dull.

在光滑的导纱杆表面，摩擦增加次序为：有光，半无光和无光纤维。

The test result showed , the friction coefficient and wear coefficient of neat novolac epoxy would decrease with the content of hardener decrease at unlubricated sliding friction condition.

对制备的无填充树脂和石墨填充树脂固化物的无润滑滑动摩擦磨损性能进行了系统的研究，获得了具有理想摩擦系数和磨损系数的复合物涂层。

DU Self-Lubricating bushing made of triple layer composites material which consists of a steel backing,a sintered porous bronze partivles interlayer and calendared with PTFE and Pb mixture as surface layer.

SF-1无油润滑轴承，是以钢板为基体，中间烧结球形青铜粉，表面轧制聚四氟乙烯和铅的混合物，是卷制而成的滑动轴承。它具有摩擦系数小，耐磨、抗腐蚀性好和无油润滑的特点。

DU Self-Lubricating bushing made of triple layer composites material which consists of a steel backing,a sintered porous bronze partivles interlayer and calendared with PTFE and Pb mixture as surface layer.

SF-1无油润滑轴承/DU轴套，是以钢板为基体，中间烧结球形青铜粉，表面轧制聚四氟乙烯和铅的混合物，是卷制而成的滑动轴承。它具有摩擦系数小，耐磨、抗腐蚀性好和无油润滑的特点。

Y9 T9 W! i3 u5 ~/ G DU Self-Lubricating bushing made of triple layer composites material which consists of a steel backing,a sintered porous bronze partivles interlayer and calendared with PTFE and Pb mixture as surface layer.

轴承， 自润滑，知识5 w， B0 H3 C0 E# D；}9 T8 X SF-1无油润滑轴承，是以钢板为基体，中间烧结球形青铜粉，表面轧制聚四氟乙烯和铅的混合物，是卷制而成的滑动轴承。它具有摩擦系数小，耐磨、抗腐蚀性好和无油润滑的特点。

Results show that MoS2-Ti composite coatings grow in islands pattern, their cross-section appear to be dense columnar structure.

结果表明：不同Ti含量的MoS2-Ti复合薄膜呈岛状生长模式，断面呈致密细柱状，结晶状态均为无定形态；薄膜的显微硬度随Ti含量增加而升高；MoS2-Ti复合薄膜在大气中的摩擦磨损性能优于MoS2薄膜，掺杂适当Ti可以使MoS2-Ti复合薄膜的摩擦曲线波动减小，耐磨寿命提高，在本试验研究范围内，含30%Ti复合薄膜的耐磨寿命最长，当Ti掺杂量达到50%时MoS2-Ti复合薄膜失去润滑性能。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。