| 单词 | seismograph |
| 释义 | seismograph (once / 39663 pages) n A seismograph is an instrument scientists use to measure the strength of an earthquake. Geologists or geophysicists who study earthquakes are called seismologists, and the tool that helps them study the shaking of the ground is called a seismograph or seismometer. It is usually installed at ground level or slightly underground, and it measures how intense an earthquake is. Seismograph comes from the Greek words seismos, "earthquake," and graph, "writing." WORD FAMILYseismograph: seismographs USAGE EXAMPLESVibrations caused by the crowd are recorded by seismographs, which are also used to measure the power of earthquakes. Los Angeles Times(Nov 26, 2016) Even heavy footfalls of hikers exploring the paths used to service seismic stations are all picked up, recorded as small regular hiccups in the seismograph. BBC(Oct 08, 2016) The geoscience center in Tulsa also has a separate seismograph specifically to track the movements of its visitors. Washington Times(Sep 26, 2016) n a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake) Hyper measuring device, measuring instrument, measuring system instrument that shows the extent or amount or quantity or degree of something |
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