震源

The epicentre was in Wenchuan County, some 90km northwest of the provincial capital of Chengdu.

震源在汶川县，在四川省省会成都西边的90公里处。

The site, from the Department of Earth Science, Rice University, Houston, Texas, USA provides age of the ocean crust, satellite gravity, topography, earthquake epicentres and recent volcanism maps for downloading for teaching purposes.

本网站属于美国休斯敦Rice大学地球科学系，提供了洋底壳的年龄、卫星引力、地形、地震震源、近期火山地图的教学资料，可供下载。

However, not all the fault surface and the source directly linked to the movement, they also may be due to seismic waves caused by secondary impact.

但并不是所有的地表断裂都直接与震源的运动相联系，它们也可能是由于地震波造成的次生影响。

However, not all the fault surface and the source directly linked to the campaign, they also may be due to seismic waves caused by secondary effects.

但并不是所有的地表断裂都直接与震源的运动相联系，它们也可能是由于地震波造成的次生影响。

We have imported some state-of-the-art equipments such as: high-frequency Vibroseis and multi-level geophones for field data acquisition.

在采集上，引进国外高频可控震源，多级检波器等主要设备，得到高采样率、高信噪比、高分辨率的高品质资料。

Series digital geophones are mainly used in petroleum exploration.

系列数字地震检波器主要用于石油、地质、煤炭、水文震动分析领域，适用于各种震源。

Effective peak acceleration; peak ground acceleration; the annual exceed probability ; potential earthquake sources.

有效峰值加速度最大峰值加速度；年超越概率；潜在震源

With the sludge thickness surveying of the water intake of the second period construction of Manwan hydropower plant as the back ground,the paper analyzed what should be considered in the hypocentre and the hydrophone of the surveying system and how to get the high resolusion picture in surveying the sludge thickness of the water intake of hydropower plant by shallow earthquake reflection shooting.

结合漫湾电站二期进水口淤泥厚度测量，分析了利用浅层地震反射波法探测水电站进水口淤泥厚度的过程，以及测量系统设计中需考虑的震源及拾震问题和图像分辨率问题。

In this paper, we present a new migration velocity analysis method-synthetic source record interactive residual migration velocity analysis method based on controlled illumination.

提出了一种新的偏移速度分析方法－基于控制照明的合成震源记录交互剩余偏移速度分析方法。

The research result shows the location accuracy with this method is better than that given before and many improvements have been mode in hollowing aspects, minishing residual error, evaluating error and controlling epicenter distribution and focal depth.

由上述研究结果可知，利用双差定位法定位精度比较高，特别是在减小残差、测定误差、控制震中分布及震源深度等方面，均比原来的定位结果有较大的改进。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。