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1)  Evolution of sponge-like structure
孔结构的演变
2)  structural evolution
结构演变
1.
Both the structural evolution of elemental powder during mechanical alloying and the effect of heat treatment on microstructure of as-milled powder were investigated by X-ray diffractometry(XRD),transmission electron microscopy(TEM) and scanning electron microscopy(SEM).
采用X射线衍射、透射电镜和扫描电镜对元素混合粉在机械合金化过程中的结构演变及热处理对合金化粉体结构的影响等进行分析,讨论其机械合金化合成机制。
2.
The structural evolution of Mo33Si66 element powders in the process of mechanical alloying and subsequent heat treatment was studied by X-ray diffractometer and transmission electron microscope.
用X射线衍射和透射电子显微镜研究了Mo33Si66混合粉在机械合金化以及热处理过程中的结构演变,并讨论机械合金化过程中的相形成机理。
3.
The structural evolution of Fe-Al-Ti-B quaternary powder during mechanical alloying was studied.
研究了机械合金化过程中Fe-Al-Ti-B四元粉体的结构演变,讨论了其合金化机制。
3)  structure evolution
结构演变
1.
The paper shows the structure evolution of bevel and hypoid gear generator as well as its working principles.
介绍螺旋锥齿轮铣齿机的切齿原理和结构演变历程,并对其各自的优缺点进行了比较,为该类机床的设计提供了理论依据。
2.
A lot of studies have been done in the fields of thermodynamics, microphase separation and structure evolution in polymer systems, which has become one of the most hot issues in c.
在高分子系统的分子热力学、微相分离及结构演变过程领域已经开展了大量的研究工作 ,已成为凝聚态物理、高分子物理、统计力学理论和计算机模拟的热点之一 。
3.
For the inspiration to future study, this paper cards and reviews the current study on direct investment on mainland by Taiwan businessmen, according to structure evolution, entrance model, management characteristics, construction of across-border net, investment effects and development trends.
本文从结构演变、进入模式、经营特征、跨界网络建构、投资效应及未来发展趋势等方面对台商大陆投资的理论研究进行梳理与回顾,以期对后续研究提供启示。
4)  evolution of pore microstructure
孔隙的微结构演化
5)  microstructure evolution
微结构演变
1.
Considering the microstructure properties and the ion bombardment during the high rate process,we investigated the controlled microstructure evolution and the improved material quality by discharge power profiling,which improved the performance of solar cells.
2nm/s)沉积了一系列不同厚度的本征微晶硅薄膜,并通过Raman谱和XRD谱的测试,研究了高速沉积时本征微晶硅薄膜的微结构演变特性及其对电池性能的影响。
6)  backstepping variable structure control
反演变结构
1.
It is proposed that using backstepping variable structure control method to design the laws of velocity.
针对高速公路交通流模型的不确定性,提出用反演变结构控制理论,设计速度的控制律,使得高速公路主线交通流密度保持在期望密度的小邻域内,仿真结果表明所得的控制律具有很好的鲁棒性。
补充资料:孔结构
分子式:
CAS号:

性质:用直接或间接可测量的量如孔隙率、比孔容、平均孔径、孔径分布等特征几何参量所描述的,经过模型简化的结构。不同孔结构的催化剂会直接影响反应级数、反应速率常数、活化能等一系列动力学参数及催化剂选择性。孔结构是催化剂常用物性指标。已推导出各种形式的关系式来描述活性与孔结构的关系。

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