1) periodic caving
周期垮落
1.
The shapes of initial roof caving and periodic caving are of triangle and parallelogram plate texture.
通过三维相似材料模拟试验,得到走向短壁水力采煤顶板周期垮落规律:顶板初次垮落及周期垮落的形状分别为三角形板结构和平行四边形板结构,垮落线与煤层走向呈一定角度。
2) roof periodic caving
顶板周期垮落
3) roof periodic caving law
顶板周期垮落规律
4) falldown period
垮塌周期
5) periodical roof caving
顶板周期性垮断
6) collapse
[英][kə'læps] [美][kə'læps]
垮落
1.
The failure,rupture and collapse of mining induced surrounding strata are a representative process in which the boundaries of dynamic system are variable.
煤矿采动围岩的破坏、断裂和垮落是具有代表性的时变边界过程。
补充资料：松垮垮
1.散漫;涣散。
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