At present, international and domestic gas detection and monitoring of targets are mainly for coal, and rarely for the subway system.
目前，国际国内瓦斯检测技术及监测目标主要是针对煤矿，基本上没有针对地铁系统的。
Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.
煤炭和天然气主要用于发电，而石油主要用于给运输提供能量，但所有这些能源的价格是相互关联的。
For the past century, U.S. energy policy aimed to promote cheap and abundant electricity, and the nation achieved this mainly by burning coal.
在过去的一个世纪里面，美国的能源政策主要是致力于提供廉价而富余的电力，而达到这一目标的方式主要是通过煤炭的燃烧。
In Ulan Bator, the air pollution is mainly related to the burning of coal, wood and everything else for heating, cooking, and electricity generation.
乌兰巴托空气污染的主要原因是燃烧煤、木材和其它所有用于加热、做饭和发电的材料。
Whereas some of these changes are evolutionary and are intended mainly to increase the productivity of existing plants, completely new technologies for burning coal cleanly are also being developed.
虽然某些技术改进是渐进的，其目的只是提高现有电厂的生产率，但人们正在开发全新的清洁燃煤的技术。
Whereas some of these changes are intended mainly to increase the productivity of existing plants, completely new technologies for burning coal cleanly are also being developed.
虽然某些技术改进是渐进的，其目的只是提高现有电厂的生产率，但人们正在开发全新的清洁燃煤的技术。
Demand for primary products used mainly in housing and infrastructure-coal, iron ore, steel and aluminium-is slowing.
煤、铁矿、钢、铝，对于这类主要用于房建基建的原材料需求正在放缓。
The geological environment of the mining area mainly for the coal mining has its inherent features.
以煤矿开采为主的矿山其地质环境有其固有的特征。
Products are mainly for armored anti-corrosion coating licensing, patent products: coal for epoxy cold asphalt and bound with epoxy ceramic coating.
产品主要为铁甲牌防腐涂料，专利产品：为环氧煤沥青冷缠带和环氧陶瓷涂料。
Huainan city, an important base for coal and electricity, is diminishing its cultivated land areas mainly for cultivating grain.
淮南市是重要的煤电基地。建国以来，耕地面积持续减少，耕地主要用于粮食生产。
This study is mainly focused on the development of a new computerized data acquisition system for the coal fired MHD electrical power generation experiments.
本文研究一套新型的应用于燃煤磁流体发电研究的计算机数据采集系统。
Following article mainly discuss some basic principles of how to choose, check and accept the sampling machine for coal flow sampling.
主要论述了在煤流中采样使用的采样机的选择和验收中的一些基本的原则。
Next, Datong coal Mine Group will mainly focus on use of coal for power generation, coal production of new building materials used in four aspects of the comprehensive utilization of coal do.
下一步，同煤集团将主要围绕利用煤矸石发电，利用煤矸石生产新型建材等四个方面进一步做好煤矸石的综合利用工作。
Based on the actual conditions in Shanxi Province, it is suggested that the coal bed methane should be used mainly for producing vehicle fuel and chemicals. The production methods are also discussed.
根据山西省的实际情况，煤多而缺石油和天然气，电多而化工产品品种少等特点，提出山西煤层气的利用应主要用于生产车用燃料和化工产品，并对生产车用燃料和化工产品的途径进行了论述。
This starter is mainly applied to soft start and soft stop for production equipments in coal mine, strip coal mine, metallurgy, harbor coal washery, power house, etc.
本起动器主要用于井工煤矿、露天煤矿、滞金、港口、选煤厂、发电厂等生产设备的软起动及软停车。
This paper mainly studied the application of artificial neural network (ANN) in the support system for safety decision of coal mine.
主要研究人工神经网络在煤矿安全决策支持系统中的应用。
Coal ranks in the Yuanyanghu mine area are mainly non-caking coal, long flame coal the second, all good coals for coal chemical industry and power plant.
鸳鸯湖矿区以不粘煤为主，长焰煤次之，是良好的煤化工和动力用煤。
Mainly used for cement, mining, coal preparation, power generation, chemicals and building materials sectors.
主要用于水泥、矿山、选煤、发电、化工及建材等部门。
This machine is mainly applicable to weave multi-layer true selvedge fabrics, especially to weave 4 layers grade 6-8 integral core for fire retardant conveyor used in the coal mine or at the wharf.
本机主要适用于多层光边织物的织造，特别适用于织造4层6 - 8级煤矿井下及码头阻燃输送带整体带芯。
The paper mainly introduces the design method of power supply and earth-leakage circuit for the electric-coal-drill integrated unit.
本文主要介绍煤电钻综合装置电源与漏电保护电路的设计方法。
The coal injection device is mainly applied to series tank devices for blowing coal powder in the blast furnace in metallurgy field.
主要适用于冶金领域中高炉喷吹煤粉的串联罐设备。
This company is situated in the coal medicine adjusts the entrance, is a Training school, mainly trains the exams for postgraduate schools, at the beginning of projects and so on high school, doctor.
本公司坐落在煤医学校正门口，是一所培训学校，主要培训考研、初高中、医师等项目。
Mainly used for sludge dewatering, solid-liquid separation and coal washing, etc.
主要用于污泥脱水，固液分离和洗煤等。
The screw pressure filter is a kind of dewatering machine for coal slime. It is mainly used in coal preparation plants, underground sumps etc.
螺旋压滤机是一种煤泥脱水处理设备，主要用于洗煤厂、井下水仓等地。
Whereas some of these changes are evolutionary and are intended mainly to increase the productivity of existing plants, completely new technologies for burning coal cleanly are also being developed.
虽然某些技术改进是渐进的，其目的只是是提高现有电厂的生产率，但人们正在开发全新的清洁燃煤的技术。
In this article, we mainly solve the application Of dust collect ion system for coal-burning flue gas in the total pollutant control.
主要介绍燃煤烟气除尘技术在总量控制中的应用。
Its mainly used for metallurgical, mining, coal, power plants, ports and industrial enterprises.
其主要用于冶金、采矿、煤炭、电站、港口以及工业企业。
Its mainly used for metallurgical, mining, coal, power plants, ports and industrial enterprises.
其主要用于冶金、采矿、煤炭、电站、港口以及工业企业。
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