“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	data integration middleware data integration of launch vehicle telemetry system data integration tools data integrity data integrity protection data intensive astronomy data intensive computation data-intensive science data interpretation of airborne electromagnetic survey data interpretation of radioactivity survey data inventory data inversion data item data journalism data leakage data level classification for atmospheric remote sensing data level fusion data-level parallelism data lifecycle management data lineage data lineage relevance data link data link control protocol data link control protocol, DLCP data link layer switching

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