“sand-shale ratio”的概念、定义、翻译、参考文献-科学参考

单词	sand-shale ratio
释义	sand-shale ratio [`san `shāl `rā·shō] ^GEOLOGY The ratio between the thickness or percentage of sandstone and that of shale in a geologic section.
随便看	ruthenium ruthenium chloride ruthenium halide ruthenium red ruthenium sesquichloride ruthenium tetroxide rutherford Rutherford backscattering spectrometry rutherfordine rutherfordium Rutherford nuclear atom Rutherford scattering rutilated quartz rutile rutin rutterite R-value rvalue RV Tauri stars RW Aurigae stars R wave ry rydberg Rydberg atom Rydberg constant

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