For incompressible boundary layer or plane channel flow, typical three-dimensional structures would appear.
对不可压缩边界层或平面槽道流，还会出现典型的三维结构。
Dispersion equations of torsional modes in three different two-layer pipes are obtained by means of analyzing different stress and displacement boundary conditions of these structures.
通过分析不同的应力和位移边界条件得到了三种不同双层管结构中扭转模态的频散方程。
This system has made the evaluation of teaching quality real-time and networking by using the B/S three layer structures.
该系统采用B/S三层体系结构，实现了教学质量评测的实时化、网络化。
The structures, forms and implementation methods of the three-phase single-layer windings are studied.
研究了三相单层绕组的结构、形式和实现方式。
The structures, forms and implementation methods of the three-phase single-layer windings are studied.
研究了三相单层绕组的结构、形式和实现方式。
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