1) Shixiajiang coal district
石下江煤矿
2) 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。
3) 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。
4) Underground Coal Mine
地下煤矿
1.
Study on the Radiological Level of Underground Coal Mine in Anhui and Jiangsu.;
皖苏两省地下煤矿环境中的放射性水平研究
2.
To find out the radiological level of underground coal mine in Anhui and Jiangsu,we had a spot check in the main production areas.
为了了解皖苏两省地下煤矿环境中的放射性水平,对两省煤炭主采区的地下煤矿进行抽样调查。
5) coal mine
煤矿井下
1.
Research of autocompensate technology about distributed capacity of electrical wire in coal mine;
煤矿井下电网分布电容补偿技术研究
2.
A non-spark cutting device for coal mine is introduced in this paper.
介绍了利用前混合磨料射流技术所设计的 ,可用于煤矿井下进行无火花切割作业的装置。
3.
The chemical compositions, properties and reaction principles of polyurethane applied in coal mine were introduced and the effect of catalyzer, foamer,fire retardant and storage stabilizer on the properties of polyurethane as seal material were discussed.
介绍了煤矿井下用聚氨酯泡沫密闭材料的化学组成、性能和反应原理 ,探讨了催化剂、发泡剂、阻燃剂和贮存稳定剂等因素对组合聚醚及其聚氨酯密闭材料的性能影响 ,并在煤矿井下进行了封闭应用试验 。
6) underground coalmine
煤矿井下
1.
Based on the analysis of various common failures in underground coalmine blasting work, the paper summarizes the main reasons of these failures and also puts forward concrete measures to guard against them.
通过对煤矿井下爆破施工作业中常见各种爆破故障的分析,指出引起故障的主要原因,并提出了预防和处理爆破故应采取的具体措施。
2.
So based on the introduction of Bluetooth technology,the main methods used in current mine wireless communication and the problems existing in underground coalmine wireless communication,discussed the technological problem standing before the application of Bluetooth technology in mine communication,analyzed its feasibility,brought forward one mobile basesite model used in under.
对此介绍了蓝牙技术特点、目前矿井无线通信的主要手段及煤矿井下无线移动通信存在的难题,针对蓝牙技术在矿井通信中所面临的技术难题进行探讨,分析其可行性,提出了一种在煤矿井下应用的以基站联合为前提的移动基站模型,最后对蓝牙技术应用于矿井之中的前景进行探讨。
补充资料：下江
1.长江下游地区，包括江苏﹑安徽﹑浙江等省。 2.江苏省的别称。因江苏省居于安徽省的下游，故称安徽省为上江，江苏省为下江。 3.娄江的别称。即今江苏浏河。
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