underground communication 中文意思是什麼

underground communication 解釋
地下通信
  • underground : adj 1 地（面）下的。2 隱蔽的，秘密的。3 （電影，報刊等）標新立異的，試刊的，試驗性而非正式的。4 ...
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. Aiming at the practical situations of frequent accidents on mine gas and existing mine gas wire communication system needs to be improved towards wireless communication system, the paper put forward all nodes of gas sensor distributed in underground were brought into an intelligent and flexible wireless network system, so as to form a gas sensor networks system with layering and characteristic of intrinsical safety which relayed on the sensor ' s node

    摘要針對礦井瓦斯事故頻發、現有礦井瓦斯監測有線通信系統急需向無線通信系統改進的實際情況，文章提出了將分佈於井下的所有瓦斯傳感器節點納入一個智能化、結構靈活的無線網路系統，組成以傳感器節點為依託的層次化且具有本安特性的瓦斯傳感器網路系統。
  2. Wang said that handset signals will be available on loop lines and central lines so people will be able to use their communication devices on platforms, underground or in certain areas while the train is in operation

    王說，屆時手機信號將覆蓋環線和一線，這樣乘客在地鐵站臺地下運行區間都能使用通訊設備。
  3. With the rapid development of road and communication of city, the harm effect that the blast vibration induced by building mass undergrounds or tunnels and digging blast underground structures act on the ground environment, are increasingly remarkable

    隨著道路、城市交通事業的迅速發展，大量地鐵、隧道的修築，淺埋地下結構的開挖爆破，由此而導致的爆破振動對地面設施，特別是對城市地面建築的危害效應越來越顯著。
  4. Above ground, several stations are equipped with a base station antenna to cover their areas. below ground, communication is via leaky coaxial cables driven by radio base stations located in each underground station. as a result, interference at entrances to underground stations happens frequently

    3 .地面沿線部分由數個車站設置基地臺之天線電波涵蓋，地下車站每一車站皆有基地臺透過漏波電纜輻射涵蓋，因而地下車站出入口部分干擾常常很嚴重。
  5. This paper describes a computer telecontrol and telemetering system which main purpose is to realize automatic monitor of pressure of powered supports in fully mechanized coal face. this monitoring system is composed of underground part and ground part. the ground part includes a computer, a printer and a ground receiving mainframe. the underground part includes electric source, a communication extension, some pressure extensions and sensors

    本文論述一種旨在實現綜采工作面液壓支架壓力自動監測的計算機遙控遙測系統。該監測系統由井上和井下兩部分組成。井上部分包括計算機、印表機、繪圖儀、地面接收主機等；井下部分包括電源、通訊分機、壓力分機和傳感器等。
  6. Theory analysis of the leaky communication in underground and discussion on actualizing projects of the system

    井下漏泄通信理論分析及系統實現方案探討
  7. Plastics. unplasticized polyvinyl chloride pipes for underground communication lines. specifications

    塑料製品.地下通信線路用非增塑聚氯乙烯管件.規范
  8. The hydraulic fracturing technology has been developed into a reliable and practical method to determine the in - situ stress slate of underground caverns, self - bearing capability of wall rock of high - pressure cavern and the high - pressure hydraulic permeability of rock mass, which has been widely used in the disposal of nuclear waste, the long and deeply - buried communication tunnels and the high - pressure caverns of hydraulic power plant

    摘要水壓致裂技術現已發展成為確定地下洞室二維原地應力狀態、高壓洞室圍巖的自身承載能力以及巖體高壓透水性的可靠實用方法，並已經在核廢料處置、長大深埋交通隧道以及水電站高壓力洞室工程中得到廣泛應用。
  9. Raiders : 1. click on the underground food twice been communication devices and beverage cans

    攻略： 1 .點擊地下的食物兩次，得到通訊器和飲料罐。
  10. Channel analysis on underground mine communication by electrical field through stratum

    穿透巖層地下電流場通信通道分析
  11. The communication between the communication extension and every underground pressure extension uses rs - 485 interface

    通訊分機與井下各壓力分機的通訊採用rs - 485介面。
  12. At last the computer processes the data and outputs reporting tables, curves and analyzes the results. the communication between the underground communication extension and the ground receiving mainframe of the monitoring system uses rds transmitting technology which has high transmitting efficie ncy and strong antijamming ability

    計算機做最後的數據處理、輸出報表、曲線及分析結果等。監測系統的井下通訊分機與地面接收主機的通訊採用rds傳輸技術，傳輸效率高，抗干擾能力強。
  13. China qi lu petrochemical co., ltd, as one of state - owned enterprises, is characterized by complex underground pipe networks conveying energy and industrial materials such as waters, steams, gases, electricity, petroleum, oils, communication and substance etc. therefore, to scientifically arrange under pipelines is not only benefit to the energy management and effective utilization, also crucial to the enterprise ' s operation planning, construction, retrofit and economic benefits

    中石化齊魯石化公司作為國有大型企業，以水、汽、油、電、通訊、物流等能源管線和工業管道為主的地下管線分佈錯綜復雜，地下管線的科學管理不僅影響企業的能源管理和用能效果，而且對企業的生產、建設、改造及經濟效益起著至關重要的作用。
  14. Preliminary discussion on treatment of communication faults between underground substation and surface central station of k j90 monitoring system

    90監控系統井下分站與地面中心站通訊故障的處理
  15. The development zone constructed four transformer substations to guarantee two lines of electricity supply, established gu bei telephone exchange bureau to guarantee customers ' requirements to install telecommunication equipments promptly, laid underground pipes and lines ( water, electricity, gas, communication, also broadband system )

    開發區建設了四個變電站保證兩路供電；建設了古北電話局保證用戶要求及時安裝電訊設施；地下管線（水、電、煤、通訊、包括寬帶已全部敷設到位） 。
  16. The prospects for using new wireless communication system underground coal mine

    機械電子式軟起動裝置的研究
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