论文部分内容阅读
湖北浙江两省经济发展状况比较及启示
【出 处】
：
经济管理文摘
【发表日期】
：
2003年9期
其他文献
The redistribution and re-precipitation of solute atom during retrogression and reaging of three different Al-Zn-Mg-Cu aluminum alloys were investigated. The re
温暖的形成的性能上的温度分发的效果为表金属挡住的 5083-O (Al-Mg ) 被调查。有实验工具的设计的联合 isothermal/non-isothermal FEA 被用来为深绘画和二维的踩案例预言适
The sol-gel method was used to prepare three kinds of nanometer magnetic particles,such as the nano-cobalt ferrite oxide powders and those doped by LaCl3·n
<正>One-pass asymmetric hot extrusion performed at 673 K was applied to fabricate an AZ31 magnesium alloy sheet.Finite element method(FEM) was used to model the
<正>Aluminum films with thickness of 8.78-20.82μm were deposited on the AZ31B magnesium alloys by DC magnetron sputtering.The influences of aluminum film on th
Aluminum matrix composites reinforced with carbon nanotube were fabricated by a powder metallurgy method. The effects of carbon nanotube content on the relative
Ni-20Cr powders mixed with tungsten,aluminum,titanium,and different contents of molybdenum disulfides were hot-pressed in graphite mould by powder metallurgy me