pit是什么意思

网络释义

用法例句

Emergency measures in coalmine during earthquake;

浅议地震时煤矿矿井井下的应急对策

According to the practice of coal discovery in Qiankeng mine of Tianfushan mine area and the recognition of the geographic structure characteristics,we aime at finding the means of application of coal disco very and recovery, to reduce the loss of the coal resources,quarantee the continuous service of coal mine and lengthen the life span of mine production.

通过对天湖山矿区铅坑矿井找煤的实践 ,充分认识该矿井的地质特征和规律 ,有针对性地开展地质找煤复采工作 ,提高煤炭回采率 ,减少煤炭资源损失 ,确保矿井持续生产 ,延长矿井服务年

With the field research,the paper reveals the seriousness of coal mine collapse in resource-based cities: coal mine collapse has affected countless people living and livelihoods.

根据实地调研,煤矿塌陷已影响到无数人的居住和生计。

Code for design of inclined shaft and chambers of coal mine

煤矿矿井斜井井筒及硐室设计规范

Code for design of chambers around pit-bottom of coal mine

煤矿矿井井底车场硐室设计规范

Code for design of district station and chambers of coal mine

煤矿矿井采区车场和硐室设计规范

Code for design of roadway section and junction lf coal mine

煤矿矿井巷道断面及交叉点设计规范

Time Series Analysis on Mine Inrush Water Quantity in Yutianbao Mine

鱼田堡煤矿矿井涌水量时间序列分析

Analyze of Mines' Thermodynamics and Determination of Ventilation Limit Depth of Dongtan Mine;

东滩煤矿矿井热力分析与通风极限区域的确定

the mining of ore or coal from an open mine.

从敞开的矿井提取矿石或煤的采矿。

Construction technology for auxiliary shaft crosscut in huerxinhe coal mine

霍尔辛赫煤矿副井井筒揭煤施工技术

Study on Ventilation Technology for Da Shuitou Hign Methane Mine;

大水头煤矿高瓦斯矿井通风技术研究

Practice of Constructing New-style Modern Mines in Suncun Colliery;

孙村煤矿构建新型现代化矿井的实践

Investigation On Switching To Other Production Of The Thin Coal Seam Mines Of Yankuang Group;

兖矿集团薄煤层矿井转产途径的探讨

Application of Mine Well Draining and Controling System in Zhangji Coal Mine

矿井排水控制系统在张集煤矿的应用

Study on No Coal Zone in Xiaokang Mine Field of TieFa Mining Group Co.;

铁法矿业集团小康煤矿井田煤厚削减带研究

Technical code for anticorrosion of shaft equipment of vertical shaft of coal mine

煤矿立井井筒装备防腐蚀技术规范

The Intensity Testing of Main Well Headframe in Dai Zhuang Mine Shangdong

山东岱庄生建煤矿主井井架强度检验

The Simple Study of Rapid Construction of Auxiliary Shaft in EightBao Coal Mine

八宝煤矿副井井筒快速施工作业浅析

The fair use for trackless underground coal vehicle

煤矿井下无轨胶轮运煤车的合理使用

Power Supply Plan for Thin-layers in Fully-mechanized Mining

煤矿井下薄煤层综采工作面供电方案