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- Large main fan 大主扇
- Development of Main Fan in Taiping Mine of Panzhihua Coal Group Co., Ltd. 攀煤集团太平矿主通风机的研制。
- The opposite direction airflow in Eastern Main Shaft of Certain Mine is caused by the main fan stoping work to undergo repair. 某矿东主井因停产检修、主扇停运引起了主井风流反向。
- Checking and protecting large main rolling mill direct current dynamo By SBC,economy loss was avoided. 利用单板机对大型直流电动机检测和保护,避免了不必要的经济损失。
- Then we enlarge the inlet area and the effective dimension of the main fan,and so the work performance of the main fan reaches the desinged requirment. 通过扩大风机进风口截面积和进风箱有效容积,风机的工作性能达到了设计指标要求。
- According to introducing, burglarproof of door of guard against theft two large main component part are door body and lock of guard against theft. 据介绍,防盗门防盗的两大基本构件就是门体和防盗锁。
- This paper analyzes the phenomenon of dongfeng well main fan breathing vibration and find out its reasons,and offers several ways of eliminating the breathing vibration. 分析了小恒山煤矿东风井喘振现象,找出了喘振产生的原因,并给出了几种消除喘振的方法。
- To the horizontal large main arbor, it is key to solve the inconvenience of fit, adjust and maintain evocable by the weight of shaft. 对于卧式布置的大型主轴,结构设计上要在保证主轴达到精度要求的条件下,着重解决因自重而引起的安装、整、修不便的问题,若重视不够,将使机床不能正常工作。
- According to the feature of site arrangement of type GAF main fan, the performance testing method which is safe &practicable for GAF main fan is put forward. 根据GAF主通风机装置现场布置特点,提出了针对GAF主通风机安全可行的装置性能测试方案;
- Comprising of one large main island and around 50 smaller ones, Singapore is situated in South-East Asia between Malaysia and Indonesia. 新加坡由一个主要岛屿和50个小岛屿组成,地处东南亚,身处马来西亚和印度尼西亚之间。
- This paper introduces the apparatus used for periodical testing of mining main fan function.This apparatus is simple,easy to carry,operating sparing and high precision of testing. 介绍了自制的煤矿主通风机性能定期测定仪,该仪器简单便携、操作方便、测量精度高。
- Versal demonstration and in the determination of the ventilation reversal rate,the pressure of main fan should not be lowered too much and a certain safety factor should be reserved. 通用示范和决心,通风逆转率的压力,主扇不应该降低太多,有一定的安全系数应保留。
- The main content of this paper introduces that adjusting speed and energy saving is the best plan on the main fan of coal mine,through analyzing the characterful chart of the ventilation system. 通过对通风系统特性曲线和应用实例的分析,说明调速节能是矿井主通风机改造的优选方案。
- This paper introduces the idea of using the integral equation method of the electromagnetic field to compute and analyse the inductive magnetic field of the model of the large main deck of a vessel. 摘要应用电磁场的积分方程法,对大型舰船主甲板模型的感应磁场进行分析与计算。
- This paper introduces the manufacture and design process of main fan wind pressure gives an alarm panalarm,analyses its working principle,function,characteristic and practicing application. 介绍了主通风机风压失常报警装置的设计和研制过程,分析了它的工作原理。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- A large piece of ice broke away from the main block. 一大块冰从整个大冰块上断裂开来。
- Large billboards have disfigured the scenery. 大型告示板已破坏了景色。
- The Regulation for the Main Fan Noise 风机噪声治理
- He has a large amount of mail to answer every day. 他每天有大量的信件要回复。