“基础自振频率”的概念、定义、翻译、参考文献-科学参考

单词	基础自振频率
释义	基础自振频率 Encyclopedia 工学地基基础振动释 natural frequency of foundation基础自振频率一个完整的基础-土系统按照某种振型做自由振动时的频率。
随便看	principal axis of strain principal axis solution principal axis transformation principal-axis transformation principal band principal base principal bending moment principal block principal branch principal bronchus principal bundle principal bundle connection principal category principal cell principal character principal circle principal class principal coefficient of contraction principal cohomology class principal coincidence curve principal component principal component analysis principal component analysis and singular value decomposition principal component analysis (PCA) principal component analysis, PCA

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。