1) underground mine
井工煤矿
1.
Through changing the configuration of the earth's surface and debasing the soil quality,land has been badly damaged in underground mines.
通过改变地表形态和降低土壤质量,井工煤矿生产对土地产生比较严重破坏。
2.
Based on the complexity of underground mine constructon projects,the paper summarizes 6 characteristics of risk on geological disaster and puts forward main contents and methods of actuality assessment,prediction assessment and comprehensive assessment.
根据煤矿建设工程的复杂性,总结了井工煤矿建设工程地质灾害危险性评估的6个特点,提出了地质灾害现状评估、预测评估和综合评估的主要内容和方法。
2) coalmine
[英]['kəulmain] [美]['kolmaɪn]
煤矿矿井
1.
Emergency measures in coalmine during earthquake;
浅议地震时煤矿矿井井下的应急对策
3) coal mine underground
煤矿井下
1.
Study on scheme of IF mobile communication in coal mine underground;
煤矿井下中频移动通信技术方案研究
2.
The status of mobile communication in coal mine underground is introduced, the difficult technical problems including laneway infection for wireless transmission and weak signal reception and noise interference are analyzed, and ways to solve these problems are proposed.
介绍了我国煤矿井下移动通信现状,分析了技术上的难题-巷道对无线传输的影响、弱信号接收和井下环境噪声干扰,提出了解决途径。
3.
To solve the problem of frequent over-grade trip of fast short-circuit protection in high voltage power supply system of coal mine underground,a scheme of adaptive protection system based on independent substation was proposed.
针对煤矿井下高压供电系统速断保护经常越级跳闸的问题,提出了一种基于独立分站的自适应保护系统方案。
5) underground mine
煤矿井下
1.
Penetration ability of radar wave is an important index for evaluation of application of radar in underground mine.
雷达波的穿透能力大小是衡量雷达在矿井中应用效果好坏的重要指标，它取决于介质的电磁波衰减系数，衰减系数越小，雷达波的穿透能力越大，衰减系数随着介质电导率的增大而增大，煤矿井下介质主要为低电导率的煤层、砂岩、页岩、灰岩，它们的衰减系数较小，雷达波在这些介质中穿透能力较大。
6) mine coal quality
矿井煤质
1.
Countermeasure and the influence factors of mine coal quality management;
影响矿井煤质管理的因素分析与对策
补充资料：井工开采(见地下采煤)
井工开采(见地下采煤)
underground mining:see underground mining
井工开采采煤。underground mining见地下
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条