longwall的例句大全

The new technique increases the efficiency of longwall panel mining.

这种新技术提高了长壁盘区采矿的效率.

Therefore its successful selection and application are the prerequisite for successful longwall mining.

是以正确的选择和应用液压支架是长壁工作面采煤乐成的先决前提.

Modern longwall mining employs hydraulic powered supports at the face area.

现代长壁工作面采煤已在挖掘区使用液压支架.

Today chock-shield support is extensively used to control the superjacent strata of longwall face.

目前,大量的长壁工作面采用支撑 —— 掩护式支架控制上覆岩层.

Its successful selection and application are the prerequisite for successful longwall mining.

正确、合理地选择液压支架架型是长壁工作面采煤成功的前提和关键.

The roof slice longwall method increases the work of laying false roof for next slice.

长壁采煤法的采煤工艺具有多重特点:顶分层采煤增加了要为下分层填设假顶的工作.

Study on the Basic Theory of Longwall Top Coal Caving System

关于长壁放顶煤开采基础理论的研究

Application of the fully mechanized longwall sub-level caving technology in the large-angle angular surface mining

综放技术在大倾角俯斜开采中的应用

As increasing of mining depth, advancing of outputs of a single working face and changing of geological conditions, the disallowed gas concentration appears frequently at longwall top coal caving face in Lu' an mining district, blocks the farther advancing of producing level.

随着采深加大、工作面单产的提高及地质条件的变化，潞安矿区综放工作面瓦斯超限频繁，严重制约了综放集约化生产水平进一步提高。

Numeric study of damage for the surrounding bed in longwall mining

长壁回采围岩破损规律的数值模拟研究