This paper has presented the results of TEM studies about the unit cell para-meters, micro-twinning structure, crystal defect and lattice fringe image of grandidierite discovered in China recently.
本文报道了我国最近发现的硅硼镁铝矿晶胞参数、微双晶结构的电子衍射分析，晶体缺陷和矿物高分辨点阵象的透射电镜观测结果。
Using finite element method, this paper investigates the static behavior of cylindrical orthogonal single-layer lattice shell structures supported by fringe truss.
本文利用空间杆系有限元法，对采用边桁架支撑的单层柱面正交异型网壳进行内力分析；
Using finite element method, this paper investigates the static behavior of cylindrical orthogonal single-layer lattice shell structures supported by fringe truss.
本文利用空间杆系有限元法，对采用边桁架支撑的单层柱面正交异型网壳进行内力分析；
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