1) the fractured roof
断裂顶板
1.
A mechanical model for the fractured roof and truss system is established based on stability theory for elastic system and analysis of stability of a dynamic system.
应用弹性系统稳定性理论对断裂顶板－锚拉支架系统建立了动力系统稳定性分析的力学模型。
2) roof breaking
顶板断裂
1.
Based on caculation of three-dimensional finite element method and field ob-servatiOn results,this paper studies the antielasticity mechanism,affecting factors and the re-lation between abutment characteristics and roof breaking and discusses the engineering signifi-cance of anti-elasticity.
借助三维非线性有限元计算和现场实测结果，对“反弹”机理、影响因素、显现特征与顶板断裂的关系进行了探讨，并对其工程意义作了评述。
3) roof re-breaking
顶板再断裂
4) seam roof and floor fracturing
顶底板断裂
5) roof faulted structure
顶板断裂构造
1.
Coal roof faulted structure is most important factor to influence coal roof stability.
煤层顶板断裂构造是煤层顶板稳定性影响因素中最重要的因素,以兖州煤田鲍店煤矿为例,分析了兖州煤田顶板断裂构造特点,探讨其对煤层顶板稳定性影响,分析了小断裂对煤层顶板的稳定性影响,断裂密集区的煤层顶板最易垮落,特别是交错断裂区更易产生顶板垮落式冒顶。
6) roof cutting and splitting
顶板剪切断裂
补充资料：i断裂(i cleavege)
分子式：
CAS号：
性质：又称i断裂(i cleavege)。质谱学中，因正电荷中心对电子对的吸引，导致一对电荷转移引发的断裂，称为诱导断裂、i断裂或异裂。
CAS号：
性质：又称i断裂(i cleavege)。质谱学中，因正电荷中心对电子对的吸引，导致一对电荷转移引发的断裂，称为诱导断裂、i断裂或异裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条