graded channel 中文意思是什麼
graded channel
解釋
緩變溝道-
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。 -
Graded gradual channel
緩變溝道 -
The main channel of shing mun river was slightly better, graded fair, but it suffered from the pollution load coming from its tributaries, and its self - cleansing capabilities were limited due to its very weak flow in the intertidal area
城門河主河道的情況稍好，水質等級為普通，但因受到支流污染物的影響，加上潮汐水流緩慢，凈化能力不足，因此當時城門河裡幾乎沒有水生物棲息。 -
The relationship between the launching efficiency and the pumping experimental setup has been studied to investigate the launching efficiency of graded - index channel waveguide
摘要為研究條形波導激光器泵浦光的耦合效率，建立了耦合效率和泵浦實驗間的直觀聯系。
分享友人