discharge variation 中文意思是什麼

discharge variation 解釋
流量變化
  • discharge : vt 1 發射(炮等),打(槍),射(箭)。2 起,卸(貨)。3 排泄,排出,放出(水等)。4 釋放;解除,...
  • variation : n 1 變化,變動。2 變量,變度,偏差。3 【語言】語尾變化;變體,異體;【數學】變分,協變;順列;【...
  1. Abundant deep groundwater, with great variation on groundwater quality, has been found in the cretaceous artesian basin and groundwater is controlled by lithofacies - paleo - geography and recharge, runoff and discharge conditions of groundwater and etc

    白堊系自流盆地初步揭示了深部賦存有豐富的地下水,地下水受巖相古地理、地下水補徑排條件等控制,水質差異較大。
  2. The variation with the time of the mean density of all particles, electron temperature and their space distributions in the discharge cell are calculated in this paper

    使用eme模型模擬計算新型蔭罩式結構和傳統的表面放電式結構,對這兩種結構的模擬結果進行比較分析。
  3. Mainly, the type of pump in the large - scale irrigation and drainage pumping station in our country is adjustable - blade propeller pump. we can regulate the pump ' s blade mounting angle following the variation of water level at the inlet and outlet of the station in order to control the discharge of pump, we also determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it optimally and economically run

    我國大部分大型電力排灌站所安裝的泵都為可調節葉片的軸流泵,這一有利條件使我們可以根據排灌站進、出口水位的變化來調節水泵的葉片角度,控制水泵的流量,併合理的確定開機臺數,通過機組間的優化組合,使整個泵站的能耗最少,達到整體最優、經濟運行的目的。
  4. The results also show that the lateral flow exchange between tributary and main channel is proportional to the variation rate of the discharge in main channel

    將該模型應用於歷史上某次垮山堵江潰決洪水,得到的計算結果與實測資料和洪痕數據相吻合。
  5. The paper analyzes and summarizes the following laws of distinctive sediment yield produced in storm floods of the region based on predecessors ' study : storm is the main dynamic force of erosive sediment yield and storm, flood and sediment exist an inevitable relation ; the flood occurring time is concentrated with high peaks and huge volume, suddenly rising and suddenly falling and has decisive influence to the formation of a major flood peak in the middle yellow river ; the main reasons of concentrated coarse sediment of the river is severe erosive sediment yield, strong sediment transporting capacity and high sediment concentration ; the important influence of frequent or continued storm floods happened in he - long reach especially in coarse sediment concentrated region to the sediment transport of the yellow river and ; along with the increase of harnessing, regional flood trend is becoming smaller but the variation of sediment quantity is not obvious and the reaction of peak discharge and flood runoff of majority tributaries are not sensitive, showing that a general and normal engineering works can not effectively control regional major floods especially the sediment of an extraordinary flood

    摘要在前人研究的基礎上分析總結了該區特有的暴雨洪水產沙規律:暴雨是侵蝕產沙的主要動力,暴雨、洪水、泥沙之間存在著必然的關系;洪水發生時間集中,峰高量大,暴漲暴落,對黃河中游大洪峰的形成具有決定性影響;侵蝕產沙強烈而粗泥沙集中,輸沙能力強,洪水含沙量高,是黃河粗泥沙的集中來源地;河龍區間特別是粗泥沙集中來源區頻繁或連續的暴雨洪水對黃河輸沙有重要影響;隨著治理水平的提高,區域洪水有減小趨勢,但泥沙量變化不明顯,大部分支流的洪峰流量、洪水含水量反應不敏感,說明一般規模和水平的治理工程還不能有效控制區域大洪水特別是特大洪水的泥沙。
  6. Monitoring the sink of the estuary by utilizing remote sensing technique can not only directly show the effects of scouring - erosion variation of the channel at estuary section through a regulated discharge regime of the river, but also is the best presentation of the test influence to the estuary in plane

    利用遙感技術對河口尾間進行監測,可直觀反映調水調沙對河口段河道沖淤變化的影響程度,也是調水調沙試驗在河口影響的平面形態的最好展現。
  7. Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the fuling reach in the yangtze river before and after the impoundment of the three gorges reservoir, the water level, velocity variation and influenced range in the fuling reach before and fifty years after the operation of the three gorges reservoir with the construction of the fuling dock and four discharge combinations are calculated by using a two - dimensional flow mathematic model

    摘要在分析長江涪陵段的水沙特性和三峽水庫蓄水前後該河段河床演變趨勢的基礎上,運用二維水流數學模型,分析了4種流量組合情況下在三峽水庫運用前和運用50年,涪陵港區碼頭修建前後的水位、流速變化及其影響范圍。
  8. The value of surplus environmental capacity of din exceeded about 70 percent of the 1st grade environmental capacity in 1997. since 1997, the impact of nutrients pollution has begun to mitigate because of the enhancing protection of marine ecology by local government. the variation of surplus environmental capacities of din and po4 - p in jiaozhou bay implicated that the discharge amounts of din and po4 - p to jiaozhou bay were bearable from late 1970s to mid 1980s

    但自80年代中期至90年代中後期,營養鹽剩餘環境容量迅速減小,至1997年din剩餘環境容量已超過國家一級海水水質標準下膠州灣din環境容量約70 ,而自90年代末開始膠州灣din剩餘環境容量又有所增加,而po _ 4 - p剩餘環境容量減小速度趨緩。
  9. The influence of the height, width and the shape of the metal barrier is calculated in this paper. the simulation results show that the shape of the barrier boundary has great influence on discharge efficiency. the variation of electron temperature with gas pressure is also investigated and its result is coincident with the recorded data

    對新型蔭罩式結構分析了單元結構的變化對電子平均溫度和放電效率的影響,並觀察了隨壓強的變化電子平均溫度的變化趨勢,模擬結果表明斜邊或弧狀的內斜式結構可提高放電效率,且電子溫度隨壓強的變化趨勢同文獻相符。
  10. Especially for resent years, because the conditions of coming discharge and sediment have occurred un - corresponding variation, shrink ' s velocity increases serious rapidly, shrink ' s characters tend to be serious, the river bed have been heightening continuously, from these, they have lead to various disaster effects obviously and brought heavy pressure for flood control and river harnessing

    黃河下遊河道為嚴重的萎縮性河道。尤其是近年來,由於來水來沙條件發生非協調性變異,萎縮速率明顯加快,萎縮性更趨嚴重,河床持續抬高,由此引起的各種災害效應愈加明顯,對防洪及河道治理產生巨大壓力。
  11. Fcd. 3 138g : 4ds outer - thread copper pipe union at both ends of the inlet and the outlet this valve uses the principle of two - stage pressure reducing variation and, when to lower the switch valve, the shock from the water pressure to the valve casing shortens the start time of this valve under the highest medium pressure and makes it with the incomparable superiority of energy saving among the pulse - type electric - controlled valves, combining to increase filtered to regulate the discharge function with machine type

    該閥採用二級減壓變化原理,降低開關閥時水壓對閥體等配件的沖擊,提高電磁閥的可靠性和工作壽命,縮短了閥在最高介質壓力下開啟時間,使其在脈沖式電控閥門中具有無可倫比的節能優勢,並在接線上採用密封插件,並增加了過濾器和機械式調節流量功能。
  12. Analysis on silt - discharge distribution and variation character of sediment - laden and coarse sand producing region in the middle yellow river

    黃河中游多沙粗沙區水沙分佈及變化特徵分析
  13. It is shown from the study results that human being is the origin causing the environmental variation, and the results of environmental variation in turn act on human being, namely, human being discharge co2 to result in the rise in air and water temperatures, and the earth ecosystem makes the air and water temperatures fall down and return to the normal dynamic balance by means of its complementary mechanism

    研究結果表明,人類是引起環境變化的起源以及其變化后的結果又作用於人類,即人類排放二氧化碳引起氣溫和水溫的上升,地球生態系統又藉助其補充機制使得氣溫和水溫下降恢復到正常的動態平衡。
  14. The researching method is, firstly, to create a flow field model which is testified to be reliable on a large area, and to research the variations of discharge entering and out - flowing from hangzhou bay ; secondly, to simulate the discharge variation of main interest area near the bridge axis with a denser grid in a subarea of the coarse model

    研究方法是首先建立大范圍的可靠適用的流場數值模型,研究進出杭州灣的流量變化;然後對感興趣的區域嵌套加密網格,利用橋墩物理模型測定的等效底摩阻系數,研究建橋前後在橋軸線上的流速、流量變化。
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