“hard bottom”的概念、定义、翻译、参考文献-科学参考

单词	hard bottom
释义	hard bottom [`härd ´bäd·ǝm] ^{MINING ENGINEERING} A condition encountered in some opencut mines wherein the rock occasionally does not break down to grade because of an extra- hard streak of ground or because insufficient powder is used.
随便看	gene expression gene flow gene frequency gene fusion gene library gene loss gene overlap gene penetrance gene pool general address general anesthesia general anesthetic general arrangement plans general aviation general broadcast general chart general circulation general depot general formula general integral generalized binomial trials model generalized coordinates generalized force generalized function generalized hydrostatic equation

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