钢结构

The preparative technique of solid lubricant is cold-press sintering method.The micro-structure , friction surface, lubricant transfer film surface of base material was characterized by SEM; XRD was used to do phase analysis. The degrees of crystallinity of pure PTFE under the different conditions of water cooling, air cooling and furnace-varying cooling were made comparison by XRD. The thermal stability of pure PTFE and solid lubricant was analyzed by DSC-TG; The composition and valence state of elements in the surface of carbon fiber ,solid lubricant before and after friction test and lubricant transfer film were characterized by XPS; The frictional property of solid lubricant was tested by pin and disk test rig .

用SEM表征原料微观结构、摩擦表面及润滑转移膜表面形貌：用XRD进行原料物相分析，及比较水冷却、空气冷却、随炉冷却三种工艺条件下的纯聚四氟乙烯树脂的结晶度；用DSC-TG分析纯聚四氟乙烯树脂及固体润滑剂的热稳定性；用XPS表征碳纤维表面、固体润滑剂摩擦前后表面、润滑转移膜表面的元素组成、价态变化；用销盘式摩擦磨损试验机对固体润滑剂进行摩擦性能测试；采用专用的台架模拟试验机对固体润滑剂镶嵌轴承套与钢轴摩擦副间的摩擦磨损性能进行测定；用莱次偏光显微镜测试固体润滑剂的硬度；用材料试验机测试固体润滑剂的抗压强度等。

Columnar structure, which is observed in the films deposited by conventional magnetron sputtering, disappears in the film synthesized at ICP power of 200 W and substrate temperature of 300℃.

利用感应耦合等离子体增强射频磁控溅射技术在Si(111)片和M2钢表面制备了ZrN薄膜，研究了基片的温度和ICP功率对ZrN薄膜的结构以及性能影响。

Surface of bore of the cylinder sleeve is processed to superior pit platform textured structure for good wearability.

气缸体缸孔镶干式钢气缸套，缸套内孔表面加工成良好的深沟平台网纹结构，使其有很好的耐磨性。

Mezzanine structure is make up of steel column,floor beam,meal deck,etc.

楼层结构由框架柱、楼层梁、钢楼承板以及边模板等组成。

14G diamond plate steel tubular frame.

坚固性：14G菱形钢，管状结构。

The die set of claim 1 wherein said piercing points comprise a plurality of pyramid shaped structures.

要求 1 的一钢模组在何处说刺骨的点包含被成形结构的一个金字塔的多数。

And mechanical characteristics of copulae of steel-concrete composite beam,which has different space and rows of shear connectors,different ratio of lateral direction reinforcement and different height of steel beam,is calculated and analyzed.

利用大型通用有限元软件 ABAQUS 对叠合梁结构进行了数值模拟，计算分析了不同剪力键布置、横向钢筋配筋率和钢梁高度时叠合梁接合部受力特性，为钢-砼叠合梁的设计提供参考和依据。

Via the sample of erecting a steel girder bridge of 62.8 m span by float tow , the article summarizes the main technique point of the method of assembling tow boat, the process of float dragging beam, the setting up scaffold, disposal of tow and stepping equipment , calculation of float dragging stability, the fastening of hang up pole E3A3 etc, also make suggestion on the dragging equipment selection, the selection of float dragging support point and so on.

通过对跨度为62 8m钢桁梁浮拖架设的尝试，对浮拖架设中的浮拖船结构和组装、浮拖法施工步骤、膺架搭设、牵引和走行设备布置、浮拖稳定性检算、挂杆E3A3加固等主要技术环节进行了总结，并对牵引设备的选用、浮拖支承点位置选择等有关方面提出建议。

Hollow rock drill steel ; geometrical structure parameter ; kind of steel ; guality of steel ; rolling technology ; integral drill steels ; extension rods ; ratio of properties and price

中空钎钢；几何结构参数；钢种；钢质；轧制工艺；硬质合金整钎；螺纹连接钎杆；性价比

To drill, cut and shape steel sections; to assem ble structural members

结构钢架工将钢材钻孔、断及成型；以铆钉或栓方法将构件装配及建造钢

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。