“roof fall”的概念、定义、翻译、参考文献-科学参考

单词	roof fall
释义	roof fall Encyclopedia 工学岩石地下工程灾害释 roof fall冒顶矿井、隧道（洞）开挖时，采掘作业面或巷道的顶板在矿山压力作用下变形、破坏而脱落，造成顶部大面积垮塌的现象。
随便看	spherical-cap bubbles spherical cavity spherical center spherical circle spherical class spherical code spherical cohomology class spherical collapse spherical collapse model 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

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。