“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	spherical component spherical cone spherical continuity spherical convergent flap nozzle spherical convexity spherical coordinate spherical coordinates system spherical coordinate system spherical covering spherical CR structure spherical cuboctahedron spherical curvature spherical curve spherical cyclic curve spherical defect spherical deflection analyzer spherical deformation tensor spherical degree spherical density spherical derivative spherical design spherical digon spherical distance spherical distribution spherical domain

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。