“undercutting level”的概念、定义、翻译、参考文献-科学参考

单词	undercutting level
释义	undercutting level Encyclopedia 工学开拓工程释 undercutting level拉底水平为地下矿山回采工作开辟底部自由面，由拉底巷道向两侧扩帮，将矿房底面拉开至足够大，补充爆破空间或者为应力作用下矿石自然崩落创造条件而进行开挖的作业水平。
随便看	conjugate set conjugate solution conjugate space conjugate spinning conjugate spinning; compound spinning conjugate square conjugate subfield conjugate subgroup conjugate surd conjugate surfaces conjugate symmetric sequence conjugate system conjugate system of curves conjugate tensor conjugate transformation conjugate transpose conjugate transposed matrix conjugate trigonometric series conjugate variable conjugate variables conjugate variety conjugate vector conjugate wave conjugation conjugation class

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