地震活动

Four facts about this belt are analyzed in this work:(1) typical mantle metasomatism existing in the volcanic rocks and in their inclusions,(2) the distribution range of the Krich volcanic belt estimated according to the K2O/Na2O ratio of the volcanic rocks,(3) the "cold spring and taele phenomenon" caused by adiabatic expansion of the mantle gases, and (4) the current situation of seismic activities.

文中重点论述了以下4点内容：(1)火山岩及其包体中存在典型的地幔交代作用；(2)根据火山岩K2O/Na2O比值勾画出富钾火山岩带范围；(3)地幔气体的绝热膨胀导致"冷泉和冻土现象"；(4)地震活动的现状。

Multi scale decomposition of wavelets ; Bouguer gravity anomaly ; rock density ; seismic activity ; North China

小波多尺度分解；布格重力异常；介质密度；地震活动；华北地区

Of special interest in areas of high seismicity is the use of the eccentric braced frame.

特别感兴趣的领域的高地震活动是利用偏心支撑框架。

If there's tremors in building this machine, it'll be chalked up to normal seismic activity.

如果在建筑这一部机器方面有震动，它将被记下到正常的地震活动。

Provides rapid notification of earthquake events to civil defense and government officials in the affected area, and to the

为受地震活动影响地区的民防系统和政府官员提供迅速的通报，并通过新闻媒体向公众通告。

Provides rapid notification of earthquake events to civil defense and government officials in the affected area, and to the public through the news media.

提供快速的通知，地震活动，以人防和政府官员在受影响地区，以及向公众通过新闻媒体。

Therefore it is obvious that in a country of such a dense population and seismic activity proper design of earthquake resistant structures is the main issue in building.

因此，对于中国这个人口密集、地震活动频繁的国家来说，建筑物的抗震结构设计无疑将成为一个重大的问题。

Procedures of establishing the model is ① comprehensive investigation of regional geo-hazard;② distribution of geo-hazard and influencing factors, such as land form, hydrographical net, soilsand rocks, geological structure, rainfall, etc;③ setting up conceptual model and mathematical model;④ grading risk degree and issuing early-warning.

建立模型的程序是：(1)区域地质灾害综合调查；(2)研究区域内地质灾害分布与地形、水系、工程地质岩组、地质构造形迹、人类工程活动、降雨量分布和地震活动的统计分析；(3)创建概念模型和数学模型；(4)确定危险度指数和预报等级。

Evidence of earthquake activity shows that junctures between blocks in this area consist of complicated deformation zones.

地震活动证据表明，青藏高原东北地区活动块体之间是以复杂的变形带接触的。

How to exclude the non_tectonic information is a key problem before TIRLS is applied to study tectonic activity or earthquake activity.

如何排除这些因素的干扰，是热红外遥感用于研究断层活动或者地震活动的难点之一。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。