抽運能級 的英文怎麼說
中文拼音 [chōuyùnnéngjí]
抽運能級
英文
pumped level-
Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization, and considered the cases that the pump beams have either narrowband or broadband linewidth. we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions. that is to say, this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state
文摘:研究了四能級系統中基於五階極化的拍頻效應，考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定於光學躍遷的均勻增寬.也就是說，這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時，可得到消除多普勒增寬的精度Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong
絕大多數員工擁有本科和研究生以上學歷，在電力系統和計量系統工作多年，從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上，為約500多家電力工業系統的發供電部門如北京供電局，廣州電力局，深圳供電局，三峽電廠，廣州抽水蓄能電廠，田灣核電站等等，科研調試部門如廣東省電力試驗研究所，湖北省電力試驗研究所等等與設備生產廠如siemens ， abb ， alstom ， toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所，包括國家計量院，清華大學，中國運載火箭研究院，空間技術研究院，航天二院，成飛，西飛和各省市計量院，電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。An operation decision method for multi - stage pumping station system with adjustable - blade propeller pump is presented. it includes optimal water level of individual stage of pumping station and optimal operation method of every pump. the paper describes some mathematical models and decision making technique of multi - stage pumping station
本文針對大型引水工程整個系統在進入穩態運行后，在各站的抽水流量或首級站進口水位發生變化的情況下及時做出運行決策，調整各梯級站間的水位，達到整個系統總能耗最小的目的。This thesis mainly researches on pattern of telecommunication management analysis and decision support in our fix - line telecommunication operation. first the construction of data warehouse is discussed, analyses the data of the base information, billing information and calling detail record of the customer, and then discuss the methods of data mining including defining the operation scope, sampling, data analysis, modeling and implementation we put focal point on the choice and design that the model of data mining, on the basis of the already studies of abroad and the actual needs of fix - line telecommunication company. three data mining models of our fix - line telecommunication operation are putted forward : customer value model, customer retention model, and customer segment model
本文對于固網通信業經營決策支持模式的探討和研究，是從企業級數據倉庫的構建出發，圍繞如何提高企業客戶細化和預測能力的問題，針對通信企業積累的大量客戶基本信息、客戶通話信息、客戶帳單信息、客戶繳欠費等數據，在數據挖掘方法論的指導下，通過業務問題范圍、選取和抽樣、探索型數據分析、建模和實施等步驟進行分析，闡述通信企業以數據倉庫為核心的數據挖掘模型選擇與設計的一般方法，提出我國固網通信運營業的三個數據挖掘應用模型:客戶分群，客戶流失和客戶價值分析。分享友人