| 单词 | seismic refraction |
| 释义 | > as lemmasseismic refraction angle of refraction, axis of refraction, index of refraction, plane of refraction, etc.; conical refraction, double refraction, seismic refraction, etc.: see the first element.extracted from refractionn.seismic refraction seismic refraction n. the refraction of elastic waves on passing between formations of rock having different seismic velocities; usually attributive. ΚΠ 1934 Trans. Amer. Inst. Mining & Metall. Engineers 110 473 (heading) Seismic refraction methods as applied to shallow overburdens. 1979 Nature 3 May 56/2 In 1977 an 800-km long seismic refraction profile was shot across Iceland and along the south~eastern flank of the Reykjanes Ridge. < as lemmas |
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