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- 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。
- 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。
- hollow sphere vanadium pentoxide 五氧化二钒中空微球
- 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。
- Application of Hollow Sphere Plastic Pigment on Coating 涂料中应用空心球塑料颜料
- Finite Ocsillation of a Compressible Hyper-elastic Hollow Sphere 可压缩超弹性球壳的有限振动
- The Research Development of Materials with Hollow Sphere Structure 中空球材料的研究进展
- 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。
- Progress in the Preparation of Hollow Sphere Materials 空心球壳材料的制备研究进展
- He drew a world map on a sphere. 他在球上面画了一幅世界地图。
- Deepwater Hollow Sphere Dual Gradient Drilling Technology 深水空心球双梯度钻井技术
- FINITE OCSILLATION OF AN ANISOTROPIC HYPERELASTIC HOLLOW SPHERE 横观各向同性超弹性球壳的有限振动
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
- Nano technology will soon pervade the world. 奈米科技将很快普及于全世界。
