| 1. | Natural frequencies of circular annular plates of polar orthotropy and variable thickness
阶梯状或线性变厚度正交异性圆板的横向振动 |
| 2. | But rare are studies of orthotropy that is more common for rocks in sedimentary basin
而在沉积盆地中较普遍存在着正交各向异性的情况。 |
| 3. | In this paper , the fem is used to analyze some factors which affects pcm performances and orthotropy
本文应用有限元方法，分析了影响压电复合材料综合性能及其正交异性的各种因素和规律。 |
| 4. | In this thesis , the characteristics of wavefield in orthotropy media was investigated by means of seismic physics model technique
本文利用地震物理模型正演技术，开展正交各向异性介质地震波场特征的研究。 |
| 5. | It is significant for energy exploration , seismic prospecting , groundwater utilized and rock engineering to study the characteristics of seismic wavefields in those orthotropy media
研究正交各向异性介质中地震波场特征对地震预测、岩体工程、地下水利用和能源勘探开发有十分重要的意义。 |
| 6. | 4 based on the construction principles of 1 - 3 type orthotropic piezoelectric composite materials , the finite element model is designed and its orthotropy is analyzed , at the same time , the length / broad ratio to pcm orthotropy is also analyzed
四、根据提出的正交异性压电复合材料的构造原理，设计出1 - 3型正交异性压电复合材料的有限元模型并分析其正交异性，同时分析了压电相材料长宽比对其正交异性的影响。 |
| 7. | Common rock samples have been shown to have velocity orthotropy according to measured experimental results . the anisotropy of rock is cased mainly by three factors ( 1 ) aligned cracks . ( 2 ) the intrinsic anisotropy of mineral crystal as the results of crystallization
对岩石样品的测试发现，在普通岩石具有速度正交各向异性特性，既有定向排列的裂缝和岩石的结晶所致，也有层理与岩性特征(定向颗粒或孔隙)构成。 |
