单词	seismograph
释义	seismograph /ˈsʌɪzmə(ʊ)ɡrɑːf / noun An instrument that measures and records details of earthquakes, such as force and duration.Later, earthquake seismographs were developed that recorded digitally, and today virtually all modern seismic recordings are digital and thus involve some sort of signal processing.... Noaa would record the earthquake on seismographs and issue bulletins about the progress of a tsunami. With more earthquakes, more and better seismographs recording quakes, and more comprehensive compilations of seismic data, seismologists are sharpening their view of the African plume. Derivatives seismographic /sʌɪzmə(ʊ)ˈɡrafɪk/ adjective ... Many amateurs acquire skills as lapidiaries, cutting, polishing and investigating specimens of all kinds, as photographers of landscape and geological phenomena, and even as builders of simple seismographic stations. The monitoring of seismic activity in Texas and studies of seismic risk are hampered by the small number of seismographic stations operating in the state. The most powerful method - seismology - is only possible for planets with seismographic stations, which have so far only been placed on the Earth and Moon. seismographical /sʌɪzmə(ʊ)ˈɡrafɪk(ə)l/ adjective
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