A method is proposed to estimate the stress level in the focal region of an earthquake.
提出了估计地震前后震源区应力水平的方法。
Epicentral depositions and earthquake deformation zones provide useful information about focal region size.
震中拗陷与地震形变带提供了震源区大小的信息。
The on-axis intensity distribution was investigated in the focal region of partially coherent light focused by an annular lens.
从理论上研究部分相干光被一环形透镜聚焦，在焦点附近的轴上点的光强分布。
In seismic hazard analysis computation, there is much uncertainty in the process of defining latent focal region and upper magnitude limit.
目前进行的地震危险性分析计算中，潜在震源区范围和震级上限的确定过程中存在很大的不确定性。
Objective the variations of the site and shape of focal region for a concave spherical ultrasound transducer in the case of high sound intensity and stronger attenuation were studied.
目的研究凹球面超声换能器的声焦域在高声强和媒质有较大衰减情况下，其形状和几何位置的变化。
Comparing with other kinds of focusing methods, it has a lot of merits: a deeper focal length, a greater ultrasound intensity and an ideal focal region and all of them are easily controlled.
与其他聚焦方式相比，多元组合聚焦超声换能器具有较大的聚焦深度、较理想的焦域以及较高的声强度等优点，并且聚焦区域和声强度易于控制。
The authors find that there is appreciable difference in focal mechanism between mining-induced earthquakes in the Laohutai coal mine and natural earthquakes of the region.
发现老虎台煤矿矿震与该区域天然地震的震源机制差异明显。
Reservior earthquake focal mechanisms are nearly aligned with the regional tectonic strain field, and reservior earthquakes are indistinguishable from tectonic earthquakes elsewhere in the region.
汽田地震震源机制解与区域构造应变场几乎一致，并且在该区域范围内汽田地震与别的构造地震不易区分。
There is focal high signal in the peripheral left frontal region (arrow) which corresponded to an area of acute infarct on diffusion weighted images and ADC map.
在左侧额叶外周可见高信号影（箭头），在弥散序列和ADC图像上符合急性梗塞。
We used the catalog of Earthquake Administration of Xinjiang and HYPODD to analyze the characteristics of focal depth and its tectonic significance in Urumqi region, Xinjiang.
采用新疆维吾尔自治区地震局精度较高的常规地震目录和双差定位目录，对乌鲁木齐地区震源深度的分布特征及与断层的关系进行了研究。
In this paper, we summarize systematically the existing experimental data, and study crustal rheology of North China by using these data combined with focal depth distributions in this region.
本文系统总结了这些流变实验资料，并应用流变数据结合地震震源深度分布，对华北地壳流变性质进行了研究。
Their focal mechanism solutions show that the nearly E-W or WNW-ESE horizontal tensional stress controls the lithospheric stress field in the region.
震源机制结果显示，近E-W向或WNW-ESE向的水平扩张应力控制着该区的岩石圈应力场；
The fracture surfaces of the focal mechanisms are selected according to the mass moving orientation of earth deformation field in the Yajiang region in recent period.
根据雅江地区近期大地形变场物质运移方向，选定了震源机制解的破裂面。
CONCLUSION: GLUT1 expression is notably up-regulated in the penumbra region after focal cerebral ischemia, it may be a protective reaction against ischemic injury.
结论：GLUT1在缺血半影区的表达上调，可能是机体对缺血损伤的保护性反应。
CONCLUSION: GLUT1 expression is notably up-regulated in the penumbra region after focal cerebral ischemia, it may be a protective reaction against ischemic injury.
结论：GLUT1在缺血半影区的表达上调，可能是机体对缺血损伤的保护性反应。
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