age of mine是什么意思

用法例句

Pondering upon constructions of essential secure mine;

建设本质安全型矿山的思考

Study on the Treatment of Acid Mine Drainage by SAPS and the Development Prospect of SAPS;

矿山酸性废水治理的研究及SAPS技术展望

Analysis on structure and problem of emergency response plan for major accidents in mines;

矿山重大事故应急预案编制结构与问题分析

Design of Sullage-drainage Power Trade System Used for Treatment of Sullage in Mines;

矿山污水治理的排污权交易制度设计

Study on the methods and avenues of applying geothermal energy in mines;

地热能在矿山的应用途径和方法

The problems of environmental geology and database for mining in Northwestern China;

西北地区矿山环境地质问题及动态数据库建设

Development and application of YJ_(2.1),YJ_(1.1) cemented carbide for mining;

YJ_(2.1),YJ_(1.1)矿山凿岩硬质合金的开发与应用

The main geological environment problems related to mining and countermeasures of preventing and curing in Zhaitang Town,Beijing;

北京市斋堂镇地区主要矿山环境地质问题及防治对策

In the case of complicated circumstance in coal mine, accidents caused by people have become main stream.

在矿山井下复杂的环境中,人因事故已成为矿山事故的主流。

The paper introduces the working principle, constitution and application of a new type liquid variable resistance starter of high power motor used in coal mine.

介绍了一种新型矿山大功率电机液体变阻启动器的工作原理、构成及应用情况。

Remote sensing technique plays a important role in production and management of coal mine,it can provide all round,precise,plentiful and reliable information for geological finding coal,environmental monitoring of region and mapping coal mine.

遥感技术在矿山生产与管理中发挥着重要的作用 ,可为地质找矿、区域环境监测、矿山测绘等基础性工作提供全面、精确、丰富、可靠的信息源。