“secondary drilling”的概念、定义、翻译、参考文献-科学参考

单词	secondary drilling
释义	secondary drilling [`sek·ǝn´der·ē `dril·iŋ] ^{MINING ENGINEERING} The process of drilling the so-called popholes for the purpose of breaking the larger masses of rock thrown down by the primary blast.
随便看	Aspidochirotida Aspidocotylea Aspidodiadematidae Aspidogastrea Aspidogastridae Aspidorhynchidae Aspidorhynchiformes aspidospermine Aspinothoracida aspirating aspirating burner aspirating screen aspiration aspiration condenser aspiration meteorograph aspiration psychrometer aspiration thermograph aspirator aspirin aspite asporogenic mutant asporogenous Aspredinidae ASROC ass

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