“长周期地震”的概念、定义、翻译、参考文献-科学参考

单词	长周期地震
释义	长周期地震 Encyclopedia 理学火山地震释 Long period earthquake长周期地震长周期地震比火山构造地震的频率低，通常具有P波，但很少有S波，主频一般小于2赫兹，5赫兹以上的频率成份较少。
随便看	lead screw grinding machine lead selenide leadship art lead shurry lead storage battery lead styphenate lead sub-carbonate lead sulfate lead sulfide lead sulphide lead telluride lead tetraacetate lead tetraoxide lead tetroxide lead-through lead time lead-time lead tin alloy lead-tin alloy lead-tin-telluride lead track lead white leadwort family lead (Ⅱ) carbonate, basic lead(Ⅱ)chloride

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。