“materials with acoustic gradad index”的概念、定义、翻译、参考文献-科学参考

单词	materials with acoustic gradad index
释义	materials with acoustic gradad index Encyclopedia 理学声学超常材料释 materials with acoustic gradad index声梯度折射率材料一种非均质的复合材料，它的组分和结构在材料内部按一定规律连续变化，从而使折射率也相应地呈连续变化。
随便看	proper angular momentum proper automorphic transformation proper axiom proper base proper character proper characteristic element proper charge density proper chord proper circle proper circular domain proper class proper coloring proper complex orthogonal group proper component proper concave function proper cone quasi convex function proper cone quasi-convex function proper congruence proper conic proper continuum proper conversion proper convex body proper convex cone proper convex function proper convex set

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