1) frost breakage length
初次断裂步距
2) caving step length of roof
断裂步距
1.
Taking the strain as index,the expression of caving step length of roof is established.
以岩石的应变为指标,确立了覆岩离层可注浆层位岩梁的断裂步距表达式,理论上证明了划分注浆层位的合理性。
3) periodic fracture length
周期断裂步距
1.
The author deduces expressions for the first and periodic fracture length of main roofs with common boundary conditions of.
本文应用板的极限分析法求老顶的断裂步距,从而解决了按板模型周现有的方法不能计算老顶周期断裂步距的问题这种方法的另一个显著的优点是它不但适用于矩形采空区而且也适用于非矩形采空区。
4) the pace of top coal collapsing initially
顶煤初次垮落步距
1.
Through observing the practical mine pressure of Changgou mine's working face,including the pace of top coal collapsing initially,the pace of direct roof rock collapsing initially,the pace of basic top pressing initially and its intensity,and the pace of the basic top pressing periodically and its intensity,the paper has researched the rule of stope's mine pressure.
对长沟煤矿工作面进行了实际矿压观测,包括顶煤初次垮落步距、直接顶岩层初次垮落步距、基本顶初次来压步距及其来压强度、基本顶周期来压步距及其来压强度,分析研究了采场矿压规律。
5) the pace of direct top collapsing initially
直接顶初次垮落步距
补充资料:步距误差
分子式:
CAS号:
性质: 光学掩模版列或行上相邻功能图形中,某图像的点与相应图像对应点之间的距离叫步距。实测步距与规定步距之差即步距误差。
CAS号:
性质: 光学掩模版列或行上相邻功能图形中,某图像的点与相应图像对应点之间的距离叫步距。实测步距与规定步距之差即步距误差。
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