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1)  deep and thick water bearing unconsolidated layer
深厚含水松散层
1.
Based on numerical analysis with special FEM(Finite Element Method) software , the observation in-situ and the special tests in lab, the author has studied the engineering and mechanical properties, characteristic of deformation of the deep and thick water bearing unconsolidated layers in Huanghuai area, the author has also studied its application in preventing the shaft wall from failure.
本文作者基于现场实测、试验室专门试验、专用软件的数值分析,较深入研究了黄淮地区深厚含水松散层的工程性质、变形及其在井筒破坏治理工程中的应用,其主要工作有。
2)  thick aqueous soil layers
厚松散含水层
1.
The results reveals a mechanism of subsidence by mining in mines with thick aqueous soil layers and is of significance in increasing accuracy of subsidence prediction.
通过实验、实测和理论分析 ,研究了永夏矿区厚松散含水地层内部非采动沉陷原因 ,揭示了厚松散含水层地区开采沉陷特殊性的机理 ,对提高开采沉陷预测的精度具有重要意义。
3)  under thick water-bearing loose bed
厚含水松散层下
4)  thick water-bearing loose
厚含水松散层
5)  extremely thick and loose aquifer
巨厚松散含水层
6)  deep unconsolidated layer
深厚松散层
1.
Horizontal movement characteristic study of the deep unconsolidated layers in mine yard;
煤矿工业场地内深厚松散层的水平移动特征研究
补充资料:含铋层状结构
分子式:
CAS号:

性质:由两个(Bi2O2)2+层和夹在其间的n个钙钛矿层所构成(n=1,2,3…)。此类结构的通式为:(Bi2O2)2+(An-1BnO3n+1)2-,式中A为铋(Bi)、铅(Pb)、钡(Ba)、锶(Sr)、钙(Ca)、钠(Na)、钾(K)等;B为钛(Ti)、铌(Nb)、钨(W)、钼(Mo)、铁(Fe)、钴(Co)、铬(Cr)等;n=1,2,3…。如Bi3TiNbO9,Bi4Ti3O12,Bi4PbTiO9等都具有层状结构晶体,其中许多晶体具有优良的电性能,在电子陶瓷中已得到应用。

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