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- This paper introduces a new reversing device adapted for main ventilator in mi-nor rnine and its application effect. 介绍了一种适合于小型矿井主要通风机的反风装置及其应用效果。
- This paper combines the important field restrictive factors of long restart time of main ventilator and adopts some measures to solve the problems. 结合煤矿生产现场制约主通风机再启动时间长的主要问题,采取了一些措施,较好地解决了问题。
- It also makes overall appraisement to properties of main ventilator, finds the main existing problems, and put forward the pertinent solution. 对该矿井的主通风机性能进行了全面评价,得出了其存在的主要问题,提出了解决方案。
- The paper introduces the main ventilator in certain mine about test method for its properties and result, and concludes the characteristic of measuration. 针对某矿井主通风机,介绍了性能测试的方法及结果,总结了测定的特点。
- The paper introduces a type of on-line monitoring and communication system for mine main ventilator's performance parameters, and describes the system principle and composition. 介绍一种矿井主通风机性能参数在线监测与通信系统，描述了系统的原理及组成。
- Based on the monitoring requirement on the main ventilators at coal mines,this paper put forward the principle for designing signal sampling device at large section ducts. 结合煤矿主通风机监测的要求,提出了大截面风道流量信号采集装置的设计原则,并设计了变截面、全压管、复合管、背压管流量信号采集装置;
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- The paper analyzes the problems existed in the synchronous motor exciter used for main ventilator,puts forward the use of centralized control unit to assembly and transformation of the system. 分析了主通风机使用的同步电动机励磁装置存在的问题,提出了由集控单元使用于组装和改造该系统,经实际应用表明,取得了显著的经济效益和社会效益。
- Crowds thronged the main square of the city. 城里的大广场上挤满了人群。
- The whole school (was) assembled in the main hall. 全校在大礼堂集合。
- The main feature on the program is her song. 那个节目的主要号召物是她的歌。
- Fables often have animals as the main characters. 寓言常以动物为主角。
- A heavy snowfall block the main road. 一次严重的降雪阻塞了主要公路。
- The gas main explode and set fire to the house. 煤气总管爆炸引起房子失火。
- I grasped the main point of the speech. 我领会了这篇演讲的要点。
- The country's main products are gold and cocoa. 这个国家的主要产品是可可和黄金。
- Men and machines poured along the main highways. 人和机动车顺着公路如潮涌而去。
- A main feature of computer virus. 计算机病毒的一种主要特性。
- He arranged his speech under four main heads. 他把发言内容归纳成四个主要方面。
- Sheet in the main sail, a storm in coming! 收回主帆，风暴要来了！
