矿井

Tunnel a hole,shaft,passage,etc

挖掘洞穴、矿井、通道等。

When mine pit tunneling tunnel, breathes the fresh air for the supplies staff, the noxious gas which the dilution tunneling working surface's gas and produces, the mine dust, the creation good working condition, must carry on to the tunneling working surface ventilates.

在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面进行通风。

When mine pit tunneling tunnel, breathes the fresh air for the supplies staff, the noxious gas which the dilution tunneling working surface's gas and produces, the mine dust, the creation good working condition, must carry on to the tunneling working surface ventilates.

以下为资料的部分内容，如需要全部资料请点击获取全文论文编号：JX469 有设计图，论文字数：16437，页数：61在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面进行通风。

When mine pit tunneling tunnel,breathes the fresh air for the supplies staff,the noxious gas w你好ch the dilution tunneling working surface''s gas and produces,the mine dust,the creation good working condition,must carry on to the tunneling working surface ventilates.

论文编号：JX469有设计图，论文字数：16437，页数：61摘要在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面举行透风。

The authors give the definition of insertion loss of electric locomotive in inductive communication through trolley wire in a mine tunnel and compute insertion loss and transmission loss. After contrasting the two losses, we know that the insertion loss is very large and it is necessary to use dedicated induction line.

给出了在矿井中利用电机车架空线进行感应通信时，架空线负载引起的插入损耗的定义，计算了插入损耗和无负载时的电磁波传输损耗并对比了这两种损耗，可知插入损耗是非常大的，这说明了使用专用感应线的必要性。

The authors introduce the calculation system with the EXCEL for traverse survey, which has been proved practical in Guqiao colliery.

矿井掘进工程量大，大量井下导线需要及时、确计算，为此，用EXCEL编制了井下支导线计算系统，解决了实际问题，并在实践中得到较好运用。

By analyzing the existing problems and disadvantage for controlling managing target of the shaft engineering and raising the relative suggestions and measurements,the target optimization of controlling shaft construction engineering was realized.

立井井筒工程是矿井建设的关键工程，对其管理目标控制过程中存在的问题和不足进行分析，并提出相应的建议和措施，以实现立井筒工程施工项目目标控制综合最优化。

A capacitance interference model of three-pulse alternating current power supply on signal wire is established.

建立了矿井电器三相交流电对测控信号线的电容性干扰模型，用复数运算法计算了稳态情况下的干扰电压，分析了布线位置对干扰的影响，并将结果推广到尖峰脉冲群下的供电线路，得出的微机测控信号线布线位置与干扰电压的关系对设计测控微机提供了基础。

Ma said the case involved 480 reporters and others pretending to be reporters who asked for "shut-up fees" to keep news of a mine flood out of the public eye.

马说这个案件牵涉到480个记者和另外一些假装成记者的人，他们要求封口费来让一起矿井水灾逃离公众的视线。

Liuhe Friction Materials plant in Jilin Province is located in Changbai Mountain, the Yitong River, are the production of automotive brake linings, mine hoist brake shoe and brake oil rig block professional factory.

吉林省柳河摩擦材料厂位于长白山下，伊通河畔，是生产汽车制动器衬片、矿井提升机制动器闸瓦和石油钻机刹车块的专业厂。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。