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直接顶

网络immediate roof; immediate roof,nether roof; Immediate and main roof

直接顶

直接顶

直接顶

immediate roof

采矿工程专业英语词汇手册 - 豆丁网 ... overburden 上覆地层； immediate roof 直接顶； floor 底板； ...

immediate roof,nether roof

矿山术语 - 日的日志 - 网易博客 ... 伪顶 false roof 直接顶 immediate roof,nether roof 基本顶 main roof ...

Immediate and main roof

roof structure_翻译 ... 屋脊边缘： roof edge 直接顶： Immediate and main roof 动态稳定性： roof dynamic stability ...

2

It skidded off my head and went into the top corner .

球擦过我的头，直接顶进了死角。

3

Since lump size of upper -immediate roof is large , a semi-arch equilibrium structure of the stratum-rock sometimes can be formed .

上位直接顶岩块强度较高、块度较大，容易形成 “岩 -矸 ”半拱式平衡结构。

4

Immediate roof type II is not suitable for large mining-height technique .

II 型直接顶暂不宜采用大采高开采技术；

7

First of all, based on the field analysis of very soft coal fully mechanized face immediate roof and the movement of top coal.

首先，根据现场实际分析极松软煤层综放工作面直接顶和顶煤的运动形式；

8

Stability monitoring of immediate roof in fully-mechanized top-coal caving face with high output and high efficiency

高产高效综放工作面直接顶稳定性监测

9

Similar simulation research on arch mechanism of direct roof falling under fully mechanized top coal caving face

综放采场直接顶垮落成拱机理相似模拟研究

10

Influence of Cycle Caved Height of Immediate Roof on Stability of Its First Layer

直接顶循环垮落高度对其第一分层稳定性的影响

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