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- welded hollow sphere joints 焊接空心球节点
- welded hollow sphere 焊接空心球
- Hollow sphere dual gradient drilling is a new deepwater drilling technology, which is developed by Maurer technology inc. 双梯度钻井又称为双密度钻井,是一种适用于深水钻井的新型钻井技术。
- welded hollow spherical (semi-spherical) joint 焊接空心球(半球)节点
- For non-homogeneous and multilayered hollow cylinder and hollow sphere, the elastodynamic and thermoelastic dynamic exact solutions are also derived. 对非均匀的空心圆柱和空心球,层合的空心圆柱和空心球,给出了弹性和热弹性动力学精确解。
- The relations of the effective moduli of the composite,the thickness of the hollow sphere wall,volume fraction of the filler,and thickness of the coating were investigated. 分析了复合材料有效模量同空心微球壁的厚度、填充体积分数、涂层厚度等参数的关系。
- In this paper, the static and fatigue tests of 12 bar specimens used in space grid and 2 truss specimens, all with bolt sphere joints, as well as 12 specimens of suspenders connecting crane rails to space grid joints have been reported. 本文对12根螺栓球节点网架杆件试件,12个悬挂吊车吊点试件及两榀螺栓球节点桁架试件进行了静力及疲劳试验。
- Full-scale Experimental Study on Large Diameter Welded Hollow Spherical Joints 大直径焊接空心球节点足尺试验研究
- Analyse the Scope of the Swearing Angle of Compound sphere joint, and Apply it to A Four-bar Virtual Machine Tool as its' Kinematic Platform, Also Made a Primary Design on it's Structure. 分析三重复合球铰摆角运动范围,并将该结构应用到一种四轴驱动的虚拟轴机床上作动平台,并对其结构进行了初步设计。
- The Finite Element Analysis of Welded Hollow Spherical Joints with Square Steel Tubes 方钢管焊接空心球节点的有限元分析
- hollow sphere vanadium pentoxide 五氧化二钒中空微球
- Load-carrying capacity and practical calculation method of welded hollow spherical joints connected with square steel tubes 方钢管焊接空心球节点的承载力与实用计算方法研究
- Load-carrying capacity of welded hollow spherical joints subject to combined planar tri-directional axial force and bending moment 平面内三向轴压和弯矩共同作用下焊接空心球节点承载力
- In this dissertation, polyethylene glycol (PEG) was used as a structure-directing agent to prepare Ag_2S and CdS hollow spheres, PbS and Ag nanorods. 本文主要以聚乙二醇(PEG)为结构导向剂,进行了空心球状Ag_2S和CdS、棒状PbS和Ag纳米结构的制备研究。
- Simplified theoretical solution and practical calculation method for welded hollow spherical joints of rectangular hollow section members 矩形钢管焊接空心球节点承载能力的简化理论解与实用计算方法研究
- LOAD-CARRYING CAPACITY AND PRACTICAL CALCULATION METHOD FOR WELDED HOLLOW SPHERICAL JOINTS SUBJECT TO COMBINED AXIAL FORCE AND BENDING MOMENT 轴力和弯矩共同作用下焊接空心球节点承载力研究与实用计算方法
- Antimony doped tin oxide(ATO) solid and hollow spheres were fabricated by reducing ATO nanoparticles with graphite as the reducer in the high temperature tube furnace. 通过在水平管式炉中用石墨还原锑掺杂二氧化锡(ATO)纳米颗粒的方法制备了ATO的实心球和空心球,并用EDX和XRD等技术分析了产物的物相和元素组成;
- Amorphous SiO_2,anatase TiO_2 and cassiterite SnO_2 hollow spheres were successfully prepared using colloidal carbon spheres as template in conjunciton with the sol-gel method. 介观尺度的氧化物空心球材料在许多领域都有着潜在的应用价值[1],因此近年来受到人们的广泛关注。
- The prepara tion,characterization,mechanism,the effect on shells from reactional condi-t ion and the development trend of hollow spheres are summarized. 本文介绍了纳米金属氧化物空心球的制备及表征方法,并对其形成机理、反应条件对壳层的影响以及存在的问题及今后的发展方向进行了初步探讨。