backup station 中文意思是什麼
backup station
解釋
備用工位-
Chongqing expressway networking toll data communication network cotains 2 - ring and 8 - ray network structure based on expressway physical structure, setting up a trasmission trunk layer of sdh stm - 4 ( can be up - graded to stm - 16 ), and channel protection business entry layer consisting of sdh onu / olt stm - 1 ( can be up - graded to stm - 4 ). data exchange layer, through ip route exchange network above sdh network, forms 3 - level computer network structure of account settlement center - road section management company - toll station. to ensure obtaining original and reliable toll data from communication network, 2m circuitous chain is established between each toll station, accountsettlement center and road section management company, and also pstn dialing backup chain is set up between toll station and account settlement center. in order to maintain clock synchronization of the whole communication network, a proposal of sub - stage clock sychrononization signal network for differet network construction scale has been put forward in this design. in view of sensitivity and importance of toll data, this design particularly gives considerations of network safety and information safety for external and internel of network. therefore, communication safety, smoothness and reliability of networking toll system can be able to maintained in many ways
重慶高速公路聯網收費數據通信網的結構是根據高速公路的物理結構構築了2環8射的網狀結構，建立了以sdhstm - 4 （可升級到stm - 16 ）的傳輸主幹層，以sdhonu / oltstm - 1 （可升級到stm - 4 ）組成的通道保護業務接入層。數據的交換層是在sdh網之上的ip路由交換網，形成了結算中心-路段管理公司-收費站之間的3級計算機網路結構。為從通信網路上保證收費數據的原始性和可靠性，每個收費站和結算中心、路段管理公司之間建立了2m迂迴鏈路，同時在收費站和結算中心之間建立了pstn的撥號備份鏈路。 -
After the field survey, the technique and implementation group of igcsb chose dajianshan where is 18km away from lanzhou seismic station in the south - west as the array site among several backup sites, and enforced a site survey on august, 1999. eignt suits of instruments supported by the analysis and prediction center, csb were used for the field observation, and 18 sites were deployed on two concentric circles and a beeline respectively. during the 18 days, we achieved about 3gb waveform data
1999年8月，中國地震局地球物理研究所臺陣建設技術實施組經過實地考察，從幾個候選陣址中選中蘭州地震臺西南方向18km的大尖山作為ims蘭州臺陣陣址，在中國地震局分析預報中心的支持下，投入了8套地震儀器以同心圓分佈和直線分佈方式在蘭州大尖山陣址對18個測點進行了為期18天的野外觀測，取得了約3gb的地震數據。 -
The automation is composed of two operating station computers ( one is a backup computer ) and three slave computers
該自動化系統由兩臺操作站計算機（其中一臺備用）和三臺下位機組成。 -
The automation is composed of two operating station computers ( one is a backup computer ) and three slave computers. every slave computer, which is cored by omron c200 plc, controls a generator independently. slave computers have data detection and control function with the help of the data detection and control interfaces which are composed of all kinds of position swiches, sensors and execution units
本自動化系統由兩個主站（其中一個是備用站）和三個子站組成，每個子站由一臺omronc200hplc構成，獨立控制一臺發電機。
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