单词:reflected seismic information
单词:reflected seismic information 相关文章
Broadcast: May 16, 2003 By George Grow This is the VOA Special English Environment Report. Scientists in the United States have developed a computer program that they say could provide an early warnin
Australian Scientists Propose a Telescope to Look Deep Underground Scientists in Australia want to build what they describe as a downward looking telescope to look for mineral wealth under the Earths surface. The telescope is really a project aimed a
App Feels Earthquakes Through Mobile Phones 能发出地震警报的手机应用 A new phone app uses vibrations from smartphones to alert people about earthquakes. 一种新的手机应用使用智能手机的震动来提醒人们地震的发生。
By Steve Herman Honolulu, Hawaii 26 June 2006 The massive earthquake and tsunami that hit the Indian Ocean 18 months ago has pushed governments, international organizations and scientists to expand a sophisticated network to detect tsunamis. VOA's S
China is frequently hit by earthquake. Now it's planning to build a national earthquake monitoring and warning system within five years to reduce casualties and economic losses. An official from the administration said while the system would not be a
And the direction the crystals are pointing makes a difference to the speed seismic waves travel through the rock: a wave traveling parallel to the crystalsin other words, along the length of the toothpickmoves faster than a wave traveling in the oth