“地震小折射”的概念、定义、翻译、参考文献-科学参考

单词	地震小折射
释义	地震小折射 Encyclopedia 理学地震施工准备释 seismic refraction地震小折射利用浅层折射波和直达波来研究地层低降速带表层结构的近地表调查方法。
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