speed-change level 中文意思是什麼
speed-change level
解釋
速度控制桿-
The control system of mould level is crucial to improve the slab quality in the continuous casting process, pid controller is used in the traditional mould level control, and it has some defaults, such as : at the start - up or finishing period of casting or during the changeover of tundish, pid control has a bad effect, its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate, and pid control can not overcome the disturbances resulted from the change of casting speed
結晶器液位控制系統是提高連鑄產品質量的關鍵環節，傳統的連鑄機液位控制方法採用常規的pid控制，存在如下不足：開始、結束澆注和換中間罐澆注時，控制效果差，超調量大，過渡時間長；塞棒頭和浸入式水口被腐蝕后引起控制精度差；浸入式水口堵塞物的突然脫落所引起的液位劇烈波動；無法克服拉速波動引起的擾動。 -
Due to issues of dongting lake districts flood composition, the evolution of sediment flow, the river and lake ( r & l ) distribution characteristic as well as the layout of r & l - dredging engineering, the article simulated the model of the dongting lake terrain change by using the gis technology and adopted the limited volumetric method to establish the two - dimensional hydraulics computation model of lake in order to forecast the water level, the flow capacity, the speed of flow and changes of flow field after implemented the project, which have provided the reliable theoretic basis for the decision - making and implementation of renovation for river course, canal and harbor and river course - dredging engineering
摘要針對洞庭湖區的洪水組成、水流泥沙演變、河道湖泊水系分佈特點以及河道湖泊疏浚工程布局情況，利用gis技術模擬洞庭湖地形變化，採用有限體積法建立了湖泊二維水力學計算模型預測疏浚工程實施后的水位、流量、流速流場變化，為河道、航道港口整治、河道疏浚清淤等工程決策與實施提供了可靠理論依據。 -
The character of the key accounts could be concluded as : to gain profit long term, have loyalty to the enterprise, play an important role strategically. on the basis of the analysis upwards, the goal of the kam of the hd copper company could be said that to gain the key account loyalty, to increase the rate that keep the key account in the company and to improve the benefit level. to achieve this goal, part 3 points out that the company should understand the change of the relationship, from the key account value factors ( price, quality, creation, reaction speed, etc ), create and improve the key account value
承接第一部分，本文第二部分深入分析了hd銅業公司大客戶管理的理論依據，首先，從企業增長與大客戶導向經營理念的關系、大客戶容量瓶頸和大客戶流失的負面累加效應闡述了hd銅業公司從戰略高度思考大客戶管理的重大戰略意義；其次，深入分析了企業大客戶的特徵：長期贏利能力強、對企業忠誠、具有重大戰略意義，並探討了大客戶細分和選擇的方法，在此基礎上，進一步分析了hd銅業公司的大客戶管理是對大客戶關系這項資產的有效管理，進而提出了hd銅業公司大客戶管理的目標是驅動大客戶忠誠，改善大客戶保持率並提高利潤水平。 -
On the basis of data available, this paper analyzes the regional difference of urbanization in china from three aspects, such as the change of the level of urbanization, the change of density of cities and the change of the speed of the urbanization
本文在既有文獻的基礎上，從城市化水平變化、城市密度變化及城市化速度三個方面分析了我國城市化水平區域差異，得出改革開放以前差距縮小而改革開放以後差距擴大的結論。 -
Some new features of the climate change in china in recent 50 years is shown by investigating the characteristics of the change of temperature, precipitation, relative humidity, wind speed and sea level pressure based on the 740 stations daily data in china, which is the most complete station data set in china processed by national meteorological center recently
利用國家氣象中心最近整編的中國740站逐日資料，通過對中國溫度，降水，相對濕度，地面風速，海平面氣壓這5個氣象基本要素變化特徵較為全面的分析，揭示了近50年中國氣候變化的一些新特徵。 -
Specifically in the field of institutional change and economic growth, the model forecasts that imposed - change and induced - change not only has level effects and growth effects on economic growth, but also has significant impact on the convergent speed
模型顯示，經濟體系不斷積累的制度存量是驅動增長的重要動因：不僅對增長具有水平效應和增長效應，而且對轉移進程的收斂速率產生重要影響。
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