词汇 | seismic |
释义 | seismic adjective uk /ˈsaɪz.mɪk/ us /ˈsaɪz.mɪk/ [ before noun ] geology specialized relating to or caused by an earthquake: 地震的;地震引起的 seismic activity/waves地震活动/地震波 having very great and usually damaging effects: 造成严重破坏的 The news that the chairman would resign set off seismic waves in the business community.主席要辞职的消息在商界引发了剧烈震动。 Geology: earthquakes & volcanic eruptions aftershock crater fault line geyser lahar lava non-volcanic phreatic pyroclastic quake seismically seismograph shock wave tectonically temblor the Richter scale tremor volcanic volcano vulcanicity You can also find related words, phrases, and synonyms in the topics: Damaging and spoiling Related wordseismically seismic | American Dictionaryseismic adjective[ not gradable ] us/ˈsɑɪz·mɪk/ earth science relating to, or caused by an earthquake (= sudden violent movement of the earth’s surface) Examples of seismicseismic The papers are illustrated with maps, cross-sections, burial history curves, seismic lines, and photographs of cores, photomicrographs and even rocky outcrops. As the end of the winter approached, he commenced a series of experiments with the seismic equipment on the ice shelf and plateau edge. The brick chimneys integral to steam-powered mills were also much simpler structures than five-story pagoda, and hence more susceptible to seismic damage. There is a good balance of onshore field observation, offshore seismic data and analogue or mathematical modelling. Chapter 5 at 200 pages long is the longest chapter and covers the estimation of seismic wave amplitudes, including the use of ray series. The chapter on observational seismology begins with a discussion of seismic instrumentation. Chapter 2 deals with the basics of seismic wave propagation and introduces the reader to some of the ray theory results. The transition from upper to lower crust is here defined as the depth level where seismic velocities exceed 6.5 km/s. In a series of papers, forming much of the book, the problem of characterizing fractures from well data, seismic, and regional geological studies is discussed. Since then a significant body of knowledge on the nature of subsurface sediments has progressively emerged, first from piston cores and later from seismic lines. Each structure is very well illustrated, usually with more than one seismic profile as well as a map and occasionally potential field data. A few more words on seismic resolution and its physical basis would not have come amiss. Here, an accumulated reservoir of magma is observed as a region of anomalously low seismic velocities. The crater is not exposed at the surface, but is seen in seismic data and a number of drill cores. Sections on seismic signals and noise are interspersed with ones focusing on processing techniques. See all examples of seismic These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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