flood period 中文意思是什麼

flood period 解釋
洪水期；潦期
  • flood : n 1 洪水，水災。2 溢流，漲水，潮水最高點，泛濫，洶涌。3 〈詩〉河，湖，海。4 充溢，豐富；大量，一...
  • period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
  1. Abstract : this paper analyzes causal factors of flood in the middle reaches of changjiang river. due to neglection of environmental management, soil erosion in the upper and middle reaches of the changjiag river, lake sedimentation, large - scale reclamation of marshes, the flood regulation capacity of the lake was descended, and flood stage was risen and prolonged. consequently more and more river levees and lake dikes were reinforced almost every year to prevent the disasters, which made flood level go up and flood period last for more days. the frequency of flood and waterlogging disasters rose and their damage was enlarged. several proposals for flood prevention including agricultural modernization are put forward

    文摘: 1998年長江大洪水后開始實施的「平垸行洪，退田還湖」的土地利用調整方案，從長遠來說應尋求農業安全且收入逐漸提高條件下的土地利用，長江中游地區應積極推進農業現代化，提高農業勞動生產率，轉移，減少分蓄洪區的人口，移民建鎮，對區內的土地要促進其規模經營，由優秀的有文化的農民經營，平時只有少量的直接從事農業生產的經營管理人員，農忙時則大量地使用季節性合同工或實現機械化，大洪水時退田還湖，減輕長江幹流大洪水的壓力，減少分洪與特大洪災時的損失，這樣還可促進避洪、冬季農業等的發展，也有利於長江中上游地區陡坡耕地的退耕還林，還可在糧食充足時進行休耕，在旱災、糧食緊張時擴大糧食生產?
  2. During the reform and opening flood period, this company always acts as a helmsman, maintaining a high development speed

    在改革開放的浪潮中，公司一直充當著弄潮兒的角色，保持著高速發展的良好勢頭。
  3. It elucidates the grade and layout of the construction diversion structures, testifies the technical rationality and economic advisability that the alternative of the cofferdam uses to dam up the discharge ( p = 10 %, q = 275. 2m3 / s ) during the post - flood period, was made by hydraulic calculation, structural design, investment comparison, progress analysis and investment risk analysis

    文中說明了施工導流建築物的等級、水工布置。通過水力學計算、結構設計、導流方案投資比較、進度分析和投資風險分析，說明了四湖溝水利樞紐工程採用圍堰擋汛后時段洪水導流方案的合理性和經濟性，為施工決策提供理論依據。
  4. Study on sediment transport in the lower yellow river during flood period

    黃河下游洪水的泥沙輸移特徵
  5. ( 2 ) the optimal design of cofferdam and diversion during flood period

    （ 2 ）公伯峽水電站施工圍堰及導流渡汛優化設計。
  6. Feasible analysis of limited water level regulation in flood period xingxingshao reservoir

    星星哨水庫汛限水位調整的可行性分析
  7. Influence of peak regulation of tgp hydropower station during flood period on navigation conditions

    三峽電站汛期調峰對通航影響的研究
  8. Study on utilization of water resources during flood period in taizihe river basin

    試談用水資源的可持續利用支持經濟和社會的可持續發展
  9. The precipitation and temperature both existed 5year periodic variation in the pre - flood period in the south of china

    華南前汛期降水和氣溫都有5a的主周期。
  10. ( 5 ) there are some relationship between the precipitation and temperature in the pre - flood period in the south of china

    （ 5 ）華南前汛期的降水和氣溫存在一定的關系。
  11. The precipitation and temperature in the pre - flood period in the south of china is the same to that of the neimeng and the southeast of china

    華南前汛期降水和氣溫都與東北以及內蒙古部分地區4 - 6月的降水和氣溫呈同位相分佈。
  12. This system can be used for generation operation or flood control operation in different runoff situation, whether in flood period or in non - flood period. and, it can also supports reasonable operation of water power station

    該模型集成系統對原有調度系統作了較大的技術改進，可在洪水期和非洪水期根據來水的不同情況，進行相應的發電調度或防洪調度。
  13. Based on the relative data of density flow in xiaolangdi reservoir in flood period of 2001, and through analyzing on water - sediment condition of density flow formed and movement element of density current, the common movement law and special phenomenon on forming, operating and discharging sediment of density flow in xiaolangdi reservoir have been clarified in this paper. the relationship of sediment transport of density flow has been explored combining with theory analysis and formula deduction

    本文主要依據2001年洪水期小浪底水庫異重流的有關資料，通過對形成異重流的水沙條件、異重流運動要素的分析，闡明了小浪底異重流的形成、運行和排沙等方面的一般運動規律和特殊現象，結合理論分析和公式推導，探討了異重流輸沙關系。
  14. The stress condition ; overall stability ; effect of filling gravels into the hole of the block of the precast concrete interlocking blocks in the water flow during the flood period as well as the resistance parameters of the blocks are studied through experimental simulation ; in which a comprehensive analysis is made on the mechanical stability and the anti - erosion properties of the blocks, and then the requirement and the safety degree of the gravel filling are given

    摘要通過試驗模擬研究了預制混凝土連鎖塊在洪水期水流中的受力狀況、整體穩定性、孔內填充碎石的作用及連鎖塊阻力參數，綜合分析了連鎖塊結構的力學穩定性和抗沖性，給出了碎石填充的要求及安全度。
  15. The reasonable limited water level can solve the conflict between flood control and profit during flood period of complicated hydraulic engineering system, and the aim of reducing flood disaster loss and getting maximum system profit can be realized

    合理的汛限水位可以更好地解決復雜水利系統汛期防洪與興利的矛盾，進而達到減少洪災損失、發揮系統最大效益的目的。
  16. By analyzing interval flood and cascade operation characteristics of the upstream yellow river basin, the influence of longyangxia reservoir operation mode in different states on gongboxia power station construction during flood period is studied

    分析區間洪水特性和黃河上游梯級運行特點，針對龍羊峽水庫實際運行狀況，分析不同狀態下的龍庫運行方式對公伯峽水電站的施工渡汛影響。
  17. Combined with the significant project - gongboxia hydro - power station construction, emphasized on construction during flood period of power station construction period, the climate character of the upstream of yellow river basin and the practice operation state of cascade reservoirs are analyzed, some problems in construction during flood period such as flood propagation time, interval flood discharge forecast, construction risk, flood period pre - alarm and longyangxia reservoir ' s function on construction of gongboxia are also studied, with an aim at presenting real interval flood forecast scheme and dispatching method, so as to provide technological support for gongboxia hydro - power station construction period

    本論文結合國家重點工程項目?公伯峽水電站的建設，以電站建設期施工渡汛為研究重點，從實施出發，分析黃河上游氣候特性和梯級水庫群的實際運行狀況，對施工渡汛中的主要問題?洪水流達時間、區間洪水預報、渡汛風險、汛期預警、龍羊峽水庫在渡汛中的作用等進行了比較全面深入的研究，目的在於提出可用於實際的區間洪水預報方案和調度方法，為公伯峽水電站施工期建設提供技術支撐。
  18. In recent years, the contradiction of the water shortages between agriculture, ecology and drought fighting are alleviated through the storing and diverting the flood water from nenjiang river and taoerhe river during the flood period ; from which obvious benefit has been obtained

    近幾年，吉林省白城市通過引蓄嫩江、洮兒河汛期洪水資源，緩解農業、生態缺水的矛盾，取得了明顯的效益。
  19. The least rainfall in the pre - flood period and annual are both happen in the north of south of china ; ( 2 ) the total rainfall tendency has little change, while the total temperature tendency is increase

    （ 2 ）華南前汛期近50年的總的降水趨勢變化不明顯；而氣溫變化的總趨勢是增加的。
  20. With the meteorological and hydrographic data in songhuajiang and nenjiang valley from 1951 to 1995, using correlation analysis and empirical orthogonal analysis, the rule of the flood and relation between flood and precipitation distribution in this region are discussed. the results show that periodic change of water level is obvious in this region. now water level is in the serious stage from 1980 ' s. there are great relation between the water level of flood period and the precipitation. the unusual precipitation of nenjiang valley has greater impact than that of second songhuajiang valley. at the summer in 1998, songhuajiang and nenjiang valley encountered the ghastly flood and the reason for that is the anomalous precipitation great exceeding the historic maximum

    利用松花江，嫩江流域1951 1995年期間的氣象和水文資料，採用相關分析，經驗正交分析等方法，討論了該流域洪澇發生的規律及其與流域內降水分佈的關系.文章指出，江流域的水位變化有明顯的階段性，且具有全流域一致的特性，目前正處在80年代以來洪澇較嚴重的階段;嫩江流域降水異常偏多對松花江洪澇的影響比第二松花江的作用要大; 1998年夏季，松花江，嫩江流域出現超歷史紀錄特大洪水的關鍵原因是嫩江流域6 8月的降水距平百分率遠遠超過了歷史上的的最大值
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