Analysts said that China continued to release the signal to control the price of coal, it should still be the thermal coal market being given the most attention.
分析师称，国家不断释放信号要控制煤价，暂时主盯的应该还是动力煤市场。
The application and good result of programmable logic controller using in the system of hoist lift signal and operation control in coal mine are introduced.
介绍了可编程序控制器在煤矿绞车提升信号系统和操车控制系统中的应用及收到的显著效果。
This paper presents the function and characteristics of CAN bus, and gives more description of CAN intelligent nodes application in coal transportation signal, integrated and blocked system.
在了解CAN总线功能与特性的基础上，重点阐述了CAN总线智能节点在煤矿运输信、集、闭系统中的应用。
In view of complex and changeable background noise in coal mines exploitation, the key question is how to extract the effective AE signal.
鉴于煤矿开采过程中，背景噪声相当复杂且多变，如何能将有效的AE信号提取出来是一个关键问题。
The higher the stress in the coal is, the stronger the deformation and the failure are, and the stronger the signal of the EME is.
煤岩体所受的应力越高、变形破裂越强烈，电磁辐射信号越强；
The technology improved the signal transmission of alarming system for coal mine safety at pr…
该技术改进了目前煤矿安全报警系统中所采用的信号传输技术和方法。
To identify the signal of the weak reflected wave is a key problem to detect the thickness of the coal seam by using elastic wave.
弱反射波信号识别是声波法煤层厚度探测中的一个关键问题。
The results demonstrated that this technology can improve imaging of coal seams in structure complicated areas and coalfield seismic data signal-to-noise performance and resolution effectively.
结果表明：叠前时间偏移技术能够有效地提高构造复杂地区煤层的成像效果，提高煤田地震资料的信噪比和分辨率。
The utility model comprises a general and essentially safe vehicle house display box for coal mines and an essentially safe signal box for going upward and downward through well heads.
由矿用一般型兼本质安全型的车房显示箱和本质安全型的上下井口信号箱组成。
GX-1Exploding isolation type drawing signal switch used for mining is applicable to coal mine where has explosive gas and coal dust.
GX-1矿用隔爆型拉引信号开关适用于具有煤尘和爆炸性气体的煤矿井下，作为低压开关防爆电铃或其它小型声响设备。
GX-1Exploding isolation type drawing signal switch used for mining is applicable to coal mine where has explosive gas and coal dust.
GX-1矿用隔爆型拉引信号开关适用于具有煤尘和爆炸性气体的煤矿井下，作为低压开关防爆电铃或其它小型声响设备。
应用推荐