查询词典 compressional

Using the data of sound velocity experiments, static high-pressure research and geophysics, the temperature coefficient of enstatite′s compressional wave velocity, thermal and density anomalies in lower mantle are estimated.

在上述的数据分析过程中，还得到了下地幔区钙钛矿型SiO〓相态纵波声速的温度系数，并由此估算出下地幔底部的温度异常幅度为65-137K，〓约为2.8/。

It is the result of the superposition of the early extensional structures and the late compressional ones.

中构造样式层：主要表现为复杂褶皱带，是早期伸展构造与晚期挤压构造叠加作用的结果。

Structural accommodation zone s are usually studied in extensional basins in eastern China, but less studied in compressional basins in western China.

构造调节带的有关问题在我国东部伸展盆地中研究较多，而在西部挤压盆地中研究相对较少。

Therefore the dispersion curves obtained in the field are primarily consisted of the first mode. For a heterogeneous elastic solid consisting of three homogeneous layers whose interlayer has low velocity, the phase velocity V〓 of the first mode will also close up to the Rayleigh wave velocity of the bottom layer when frequency f→OHz, but V〓 of the first mode will close up to the shear wave velocity of the interlayer when f→∞, and there is a cut-off frequency at high frequency region for the first mode and V〓 close up to the compressional velocity of interlayer when interlayer is liquid.

当三层固体介质中存在软夹层时，若f→OHz，则其基阶模式的相速度V〓→V〓（V〓为最底层介质的瑞利波速度）；若f→∞，其基阶模式V〓→V〓（V〓为中间层介质的横波速度）；若三层介质中存在液体夹层，当f→OHz时，基阶模式V〓→V〓，而基阶模式在高频段存在一个截止频率，截止频率处的瑞利波速度V〓→V〓；由此可判定，野外实测的相速度频散曲线不仅有基阶导波模式，同时还应有高阶导波模式波的存在，接收信号中存在模式间的跳跃，因此频散曲线会产生"之"字形现象。

A combination of regional geology and geochemistry indicates the Cambrian and Ordovician evolution in the south of central Asian zone is charactelized by complex collages between continental blocks with island arcs under the compressional background perhaps related to the final convergence within Gondwanaland, the so-called late Pan-african movement.

综合地质对比显示，古亚洲洋南部和相邻的秦祁昆洋区域在寒武－奥陶纪期间的演化以小洋盆，中小型陆块相间的复杂构造格局为特征，在可能与晚泛非运动有关的整体汇聚背景下普遍出现强烈的岛弧型岩浆作用和活跃的岛弧拼贴、陆壳增生过程。

The limited hydrothermal karst and mixed zone beneath the anticline axis controls the porosity distribution of Ordovician System and it is anticipated that surroundings of the axis of fold formed by compressional reverse orverthrusting during Indo-Chinese epoch and the coordinated area of morphology of anticline in the screen of buried hill and that of top surface morphology is the best position for development of the reservoir.

局限的热液岩溶和裸露的背斜轴部之下的混合带对千米桥潜山奥陶系孔隙分布具有重要控制作用，预期在印支期挤压逆冲作用形成的背斜轴部，特别是潜山内幕背斜形态与潜山顶面形态相互协调的区域，应是储层发育最好的部位。

Also called compressional wave, longitudinal wave, primary wave, pressure wave, dilatational wave, and irrotational wave.

也可称为压缩波，纵波，初至波，压力波，疏密波，无旋波等。

Second, by analyzing the strain of northsouth blocks of the fault, we find an asymmetric displacement distribution between the two sides of the rupture, and the two blocks are subject to compressional and tensional stress respectively. It is a pattern that cannot be explained with the linear elastic theory. However, laboratory experiments and in situ measurements in boreholes have shown that many crustal rocks exhibit a nonlinear elastic behavior in compression and tension with a dependence of the Young's modulus on the minimum principal stress. So we suggest that the nonlinear displacement distribution should be considered when dislocation and hypocentral parameters are analyzed.

进而通过对地震南北盘同震应变的分析，发现了昆仑山地震的南北两盘分别受挤压和拉张两种应力作用，研究表明多种岩石在拉张和压力作用下其最小主应力下的杨氏模量表现出非线性弹性特征，从而提出对昆仑山地震地表位移及震源特征参数分析时应考虑非线弹性介质导致的非线性弹性位移分布特征。

We have undertaken an experinental study of compressional-wave velocity and It's anisotropy of mylonite and it's surrounding rocks from North-China at high pressure and temperature.

对华北地区韧性剪切带几种代表上、中、下地壳深度的糜棱岩及其围岩在高温高压条件下进行纵波速度测定及各向异性研究。

Based on modern tectonic theory,the authors believe that this conglomerate is a product of middle-late stage sedimentation during a compressional orogeny.

本文根据现代构造理论，认为修水组底部砾岩属于挤压造山作用中晚期的沉积产物。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。