查询词典 coal

Yes. This coal pit can be said to be China's oldest mechanically opened coal mine.

是啊。这口矿井可以说是中国年纪最大的一口机械矿井了吧。

In order to minimize the number of coal-mine accidents, firstly, the control of major gas outburst accidents should be given to priority; secondly, coal-mine accident casualty and megaton death rate should be decreased.

减少煤矿安全事故，一是要重点控制瓦斯等重特大事故的发生，二是要有效地减少煤矿死亡人数，降低百万吨死亡率。

Long-time engaged in coal geology, anthracology, coal metamorphism of teaching and research work.

长期从事煤地质学、煤岩学、煤变质作用的教学和科研工作。

By TDS-6 microseism test system, the MS effect of the compound coal-rock samples from Xinzhouyao Coal Mine was studied in the process of deformation, fracture and rockburst failure, especially the evolvement of MS frequency-spectrum before and after rockburst failure was revealed.

利用TDS-6微震采集系统测试了忻州窑煤矿组合煤岩试样变形破裂直至冲击破坏过程中的微震信号，特别是冲击破坏前后微震频谱的变化规律。

The emitter and the receiver of the microwave measuring system add a measuring travel, completely utilize the Doppler effect, enlarge the microwave absorptive attenuating action of the pulverized coal, and consequently increase the measured voltage difference, avoid the problems of the reflection measurement, and can accurately measure the pulverized coal concentration value.

本发明增加了测量沿程，充分利用了多卜勒效应，增大了煤粉对微波的吸收衰减作用，从而增大了测量的电压差值，而且避免了采用反射测量时出现的问题，能准确的测出煤粉浓度值。

We developed two kinds of new products for low-power and high-resolution mine shallow seismograph, mine geology detector and mine tunnel predictor. By field experimental verification, they can solve effectively the detecting problem of small geological structure and coal seam thickness around underground coal mine tunnel. Their performance and function of reached or exceeded the level of domestic similar products, and their power consumption (≤4W) is lower than the advanced high-resolution shallow seismographs at home and abroad.

开发出两款低功耗高分辨率矿井浅层地震仪产品——矿井地质探测仪和矿井巷道超前探测仪，通过现场试验验证，其可有效地解决煤矿井下巷道四周浅层地质小构造勘探和煤层厚度探测问题，仪器性能和功能达到或超过国内同类产品水平，且仪器的功耗(≤4W)小于国内外先进的高分辨率浅层地震仪产品

This paper mainly use static simulation method, and reseach some hazardous element in coal gangue from N. 1 well of Huang-Ling Kuang Qu . Base on the simulation experiments, hazardous minor element from coal gangue are studied.

在雨水和地表水的淋滤作用下，其中的一些有害元素会进入水体和土壤环境，从而造成水体质量下降，土壤功能破坏，影响生态发展，危害人体健康。

Pump is mainly used in the series of environmental protection, municipal works, coal-fired power plants, gas coke plant, oil refineries, steel mills, mining, paper industry, cement factories, food factories, printing and dyeing and other industries strong suction fluid, heavy oil, oil slag, dirty fluid, mud, mortar, sand and the flow channel the flow of urban sewage sludge, as well as containing coal, ash liquid.

该系列泵主要用于环保、市政工程、火力发电厂、煤气焦化厂、炼油厂、炼钢厂、采矿、造纸业、水泥厂、食品厂、印染等行业抽吸浓液、稠油、油渣、污浊液、泥浆、灰浆、流砂及城市排污沟道的流动污泥，以及含有煤块，灰渣的液体。

Flame observation: If it shown yellow in flame cone, blue around, and the opposite wall could be seen through peep hole, that means the blending ratio of air and coal gas is ok. If air excess, it shown sky blue, bright, and the wall of combustion chamber could be seen clearly but dulling. If coal gas excess, it shown dark red, muddiness, and the wall of combustion chamber could be seen hardly.

1火焰观察：从窥视孔观察燃烧室火焰，如果火焰中心呈黄色，四周微蓝，透明，清晰可见燃烧室对面砖墙，则为空气煤气配比合适；如果空气量过多，则呈天蓝色，明亮耀眼，燃烧室砖墙清晰可见，但发暗；如果煤气量过多，则呈暗红，混浊不清，难见燃烧室砖墙。

Denitriflcation efficiency is affected by the complexity of coal configuration and the multiformity of organic nitride in coal.

煤结构的复杂性和有机氮存在形态的多样性影响了JH-2菌株对碱溶煤中氮的充分利用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。