查询词典 caving-in

Conyoneering is a combination of climbing, caving, backcountry hiking, and rappelling.

攀峡者1：攀峡结合了攀爬、凿洞、荒野远足以及攀绳下滑。

We have been dominated bamboo products field for more than 20 years,made enough craftwork disposal:absorbed Chinese traditional culture,superinduced modern characteristic being our foundation of design perfect and particular skill of handmade caving promised our artwork show,excellent sales team serviced you who loved bamboo.

我们有20多年竹制品的行业领袖者，做足竹材工艺处理：吸收中国传统文化，增添时代气息，是我们设计的基础：精湛而独特的手工雕刻枝法，是我们产品艺术效果得以体现的保证：优秀的销售团队，服务对&竹&钟爱的您。

Keywords movement probability;computer simulation;SLS system;sublevel caving

移动概率；计算机仿真； SLS系统；无底柱分段崩落法

The fracture angle、height of roof coal and support chute which effect on the rules of caving coal are studied completely.

针对煤矿放顶煤工作面特点，建立了在有边界条件约束下的放出体多元数学模型，全面分析了顶煤垮落角、放煤高度、放煤口位置对放煤基本规律的影响，阐明放出椭球体轴偏角的产生与计算方法。

By using of dynamic fuzzy group method, the top coal cavability was evaluated according to the following seven factors, such as coal seam strength, mining depth, crack developing extent's features, dirt band height, filling situation of goaf, classification of main roof and the ratio of mining and caving height etc.

运用动态模糊聚类方法，以煤层强度、赋存深度、节理裂隙发育程度、夹矸厚度、采空区充满程度、老顶级别、采放比等7个因素按模糊最大隶属度原则综合评价顶煤冒放性。建立了模糊聚分析方法的数学模型，以上述7个指标为基础，对顶煤冒放性的模糊聚类分析进行运算，给出分类的实施过程。潞安矿区顶煤冒放性分类结果表明， 5对主要生产矿井主采3号煤层，其顶煤冒放性皆为好和较好，经潞安矿区综放开采实践证实，分类合理

With the generation and development of normalization,standardization and quality control of the production, the caving names on the manufactures,which is related to the inscription but different frorn it. begins to emerge.

在出土的秦代珍贵文物中，无论是生活用品还是军事用品；无论是竹器、陶器、还是铜器、铁器；无论是陶涌、陶马，还是建筑砖瓦，都有一个明显的标记，即物器上大都刻有记号。

Based on the theoretical analysis for 1000 m long drainage skills, the UDEC4.0 numerical simulation software is adopted to perform the calculation, showing that the height of caving zone and fractured zone of gob is 9 m and 30 m, the vertical height from the mining induced O-shaped circle to the roof is 10~25 m, and the horizontal distance to both sides of gob is 10~35 m.

本文在顶板千米钻孔抽采技术原理分析的基础上，采用UDEC4.0数值模拟软件计算得出采空区冒落带和裂隙带高度为9m和30m，采动裂隙&O&形圈的范围为距工作面顶板垂高10~25m，距采空区两侧水平距离为10~35m。

According to these theory study conclusion, attaching the on-the-spot data, taking the fracture and elastic-plastic mechanics knowledge as the foundation and the key strata theory as the instruction and considering overburden character, mining height, parameters of working face and crack-expansion characteristics of caving rock, a new method from the mechanism angle by studying on failure conditions of underground-induced strata and judgment method of water-flowing fractured zone's height is elicited.

在这些理论研究成果的基础上，结合现场调查资料，以断裂力学和弹塑性力学知识为基础、以关键层理论为指导，综合考虑覆岩岩性、煤层采厚、开采尺寸、冒落岩石的碎胀性等因素，研究了采动岩层的破断条件和导水裂隙带高度的判断方法，从机理角度获得其高度预计的新方法。

The top coal fracture is described distinctly under the condition of different roof span and mining technology parameters. Through orthogonal experiment of numerical simulation, the rational pretreatment span of hard roof is determined, and the rational working resistance of support is selected also. As a result: the hard roof is effectively controlled not only to protect the working face but also to promote the caving of hard top coal to increase the recovery ratio.

在有效控制坚硬顶板的基础上，利用数值模拟正交试验法，研究了采高、采放比、支架阻力、放煤步距等工艺参数对顶煤压裂效果的影响规律，从而对工作面工艺参数进行优化；并根据实验所得放煤方式对块体顶煤的适应性规律，选择&两硬&综放面的放煤工艺，从而形成了系统、完善的&两硬&条件综放工艺。

The paper introduces roof control methods of goaf of large mining height fully-mechanized face by artificial forced caving with deep-hole blasting at seam 14 of Silaogou Mine and analyzes the effect.

介绍大同煤矿集团公司四老沟矿14#层404盘区8402大采高综采工作面人工强制深孔爆破处理采空区顶板的技术，并对其效果进行了分析。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！