“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	intelligence hierarchy intelligence industry intelligence information extraction intelligence information source intelligence led police intelligence management intelligence management system intelligence of competitive environment intelligence of criminal investigation intelligence of economic investigation intelligence process management intelligence quotient intelligence retrieval system Intelligence Service intelligence service system intelligence simulation intelligence test intelligence visualization intelligence war intelligent intelligent actuators and controllers intelligent agent intelligent agent based decision support systems intelligent agriculture intelligent algorithm

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