在本论文中，我们尝试用一种全新的计算方法——统计超原胞法来计算混晶的电子结构。
In this thesis, we attempt a new method, the statistical supercell method, to calculate the electronic structure of a mixed crystal.
同时探索出一种新的管线钢原奥氏体晶界腐蚀方法。
A new method for showing the prior austenite crystal boundary corrosion, of pipeline steel has been also supposed.
用x射线衍射法对棉纤维细胞壁的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布规律进行了研究。
The distribution of microfibril spiral angle and relative orientational index of cellulose crystallites in cotton fibre cell walls had been studied by X-ray diffraction analysis.
结果表明，细小弥散的第二相粒子能有效地阻碍焊接热影响区粗晶区的原奥氏体晶粒长大，改善该区域的韧性。
The results show that the dispersed second phase particles can effectively retard the growth of austenite grain in the CGHAZ, and improve the toughness.
脉状组织形成的原因是合金元素和氮原子在原奥氏体晶界偏聚形成合金氮化物。
Since the alloy element and nitric atom segregate on the austenite crystal boundary, the vein-like structure is formed.
应变诱发马氏体首先在原奥氏体晶界和孪晶界形核。
These lath martensite first nucleates in parent austenite intergranular and twin boundary.
研究表明，调质后粗晶奥氏体的遗传现象，是由于沿原奥氏体晶界碳化物偏聚析出的结果。
This paper shows that inheritance phenomenon of coarse austenite grains are due to the boundary segregation of carbide along the prior austenite grain boundary.
结果表明，晶区的非晶化转变是原丝在预氧化过程中组织结构演变的主要形式；
The results show that amorphization of crystallite is the main form of microstructural evolution during thermal stabilization of PAN fibers.
结论：改后共沸结晶条件优于原共沸晶条件。
Conclusion: This azeotropic crystallizing condition is better than old one.
在薄壁铸件中获得无游离渗碳体和铁素体基体的稀土球铁的关键是高碳过共晶原铁水。
Therefore, in thin section castings, for eliminating eutectic carbides and obtaining ferritic matrix, melts treated by re need high carbon content and hypereutectic composition.
综合考虑取向因子对纤维结构性能因素的影响，认为PAN原丝晶区取向因子约为0.9、总取向因子约为0.8时，纤维力学性能较好。
It was considered that the mechanical properties of PAN precursor was better when the orientation degree in crystalline region and overall orientation factor were about 0. 9 and 0.8, respectively.
原丝经过预氧化后仍保持原来的微原纤结构，纤维外部表层的石墨微晶较大，所含孔隙较少，内部的微晶较小且含有大量孔隙。
The (graphite) crystallites in the outer layer of the carbon fibers are large with few pores, while the inner crystallites are small with many pores.
结果表明：当分散剂为水，淀粉与水分的质量比为3：4时，原玉米淀粉可以均匀的转变为非晶颗粒态淀粉。
The results indicated that when water used as a dispersant agent, the proportion of starch and water at 3:4, the non-crystal granular corn starch can be obtained...
结果表明：当分散剂为水，淀粉与水分的质量比为3：4时，原玉米淀粉可以均匀的转变为非晶颗粒态淀粉。
The results indicated that when water used as a dispersant agent, the proportion of starch and water at 3:4, the non-crystal granular corn starch can be obtained...
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