“tonstein”的概念、定义、翻译、参考文献-科学参考

单词	tonstein
释义	tonstein Encyclopedia 理学煤层释 tonstein高岭石泥岩夹矸火山灰降落到含煤地层，在特定的地质条件下蚀变为以高岭石为主要成分的薄层黏土岩。
随便看	ordered couple ordered cycle ordered direct product ordered direct sum ordered estimate ordered extension ordered factor group ordered factorization ordered field ordered field extension ordered geometry ordered grammar ordered group ordered groupoid ordered incidence structure ordered integral domain ordered linear space ordered list ordered module ordered monoid orderedness ordered normed space ordered n-ple ordered n-tuple ordered orbit

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