main river (stream) 中文意思是什麼

main river (stream) 解釋
主流；主河
  • main : adj 1 主要的，主，全，總。2 充分的，盡量的；全力的，有力的。n 1 體力，氣力；力〈僅用於 with might...
  • river : n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  • stream : n 1 河流，小河；川，溪。2 流出，流注；一連串，（人物等的）輩出。3 （事件等的）連續；（財富等的）...
  1. What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank

    研究結果表明：設置低坎分流墩后，消除了擺動水躍水舌擺動的根源，提高了水躍的消能效果，改善了下游水流流態。下游水體的主流在中部，既有效的降低了坎后水流底流速，減輕水流對河床的沖刷，又避免了主流位於表面導致波浪過大的結果，下游的水面波浪明顯得到削減。依據經驗公式，可根據工程水流條件設計出低坎分流墩的體型參數，進而估算出下游沿程的水面波浪，為下游岸邊的砌護提供依據。
  2. ( 3 ) according to compensation benefit formation cause and scientific, rational, impartial, equitable distribution principle, put forward distribution project of water supply and generation electricity compensation benefit in the main stream of the yellow river

    （ 3 ）根據補償效益成因分析及科學、合理、公平、公正的分配原則，提出黃河幹流梯級水電站補償效益中的供水和發電效益的初步分配方案。
  3. In term of rational price the compensation benefit in the main stream of the yellow river mean annual is 5. 086 * 10a8 yuan. ( 4 ) with the long - liu regulated, the ning - meng irrigation guarantee rate increased from 31. 25 to 86. 25 percent, the downstream increased from 56. 25 to 80. 00 percent

    （ 4 ）黃河上游水電站調節直接保證了寧蒙灌區與下游省區的灌溉用水，經上游龍劉調節以後，寧蒙灌區灌溉年保證率由31 . 25提高到86 . 25 ：下游省區由56 . 25提高到80 . 00 。
  4. Built up the optimal compensation regulation model of cascade hydropower stations for water resources system in the main stream of the yellow river, adopted poa method to solve optimal model in order to analysis water supply and generation electricity compensation benefits, discussed its distribution project and implementation countermeasures

    本論文主要針對黃河幹流水資源系統建立幹流梯級水庫、電站補償調節優化模型，採用逐步優化演算法（ poa ）求解模型，定量分析計算了黃河幹流水量以及電量補償效益，探討了黃河幹流補償效益的分配方案和實施對策。
  5. It decides the protective objectives for different ecological reserve area based on the study of channel wetlands and survey and analysis of top - grade species ( fishes ) of the yellow river : from the point of the basin, the main ecological protective objectives of the tipper stream are vegetation and forest for conservation of water supply ; soil and water conservation is the main in the middle reaches for vegetation protection and rehabilitation and ; the lower reaches takes types of wetlands protection and wetlands area maintenance as the main, protecting biodiversity and important birds resources

    在黃河河道濕地研究和黃河水體內頂級物種（魚類）的調查分析基礎上，確定了黃河不同類型生態保護區的生態保護目標：從流域角度而言，黃河上游的主要生態保護目標是植被和水源涵養林；中游應以水土保持為主，主要是恢復和保護植被；下游以保護濕地類型和維持濕地面積為重點，保護生物多樣性和重要鳥類資源。
  6. Thus, a project, named as east - to - west water transfer, is being planning for solving the water shortage of the mentioned above cities. the project will transfer the water from the main stem of the hunjiang river into the dahuofang reservoir in the suzihe stream, a tributary river in the liao river, with 80 kilometers tunnel

    遼寧省擬先從渾江幹流取水，通過87 . 5公里的引水隧洞，將水引至蘇子河入大夥房水庫，以供給遼河中下游地區，解決其工業和生活用水之緊張局面。
  7. A dead - end channel extending from the main stream of a river

    死水潭，死河從主河道分流出來的死水溝渠
  8. Hydroelectric exploitation on the main stream of the yellow river in gansu province and regional economic development

    甘肅黃河幹流水電開發與黃河流域經濟發展
  9. Since boundary of the lower yellow river bed varies with the flow conditions, main channel of the stream continually shrank and flood control becomes rather difficult

    隨著黃河下游水沙條件的不斷變化，河道的邊界條件也隨之發生變化，主槽嚴重萎縮，泄洪能力日臻下降，防洪問題日益突出。
  10. Observed stream flow at 17 hydrological stations along the main river was used to calibrate the model

    模擬總水量同實測總水量的相對誤差在5 %以內，其中有11個站效率系數（確定性系數）在。
  11. The jiangkou hydropower station that is now under construction is the largest hydropower project on the main stream of the furong river. it ' s the most important electricity energe source of chongqing in the 21 century and it also be the main project of the big develop of western

    江口水電站是重慶21世紀重要電力能源供應基地，是西部大開發的一項骨幹工程，也是烏江支流之一的芙蓉江幹流上最大的在建水電工程，目前該工程正在緊張的施工之中。
  12. Ningmeng, longsan reaches and its lower reach are studied as well ; from which the suitable and the minimum eco - environmental water demands for 10 important hydrographic sections of the main stream of the yellow river are put forward at last

    對寧蒙（下河沿頭道拐） 、龍三（龍門三門峽）和下游3個重要河段的河道生態需水量、環境需水量計算方法及生態需水量、環境需水量耦合等問題進行了研究，提出了黃河幹流10個重要水文斷面的適宜生態環境水量和最小生態環境水量。
  13. Taking the effected area of the main stream of shule river as the study region, the feature of water resources, the status quo of water demand and water supply are analyzed, with which the problems may occur from the water resources development and utilization therein are exposed, and then a way to reasonably develop and utilize the water resources is put forward based on the re - allocation of the development and utilization as well

    摘要以疏勒河幹流影響范圍為研究區，分析了疏勒河流域水資源特徵、供用水現狀，揭示了水資源開發利用中存在的問題，對水資源開發利用進行了優化調配，提出了合理開發利用的途徑。
  14. The tung chung river is made up of three main streams. one eastern stream runs through wong lung hang, while two western streams pass through shek lau po and nim yuen before entering tung chung wan on the north - western coast of lantau island

    東涌河由三條主溪匯流而成，東溪貫穿黃坑，西面兩條主溪分別流經石榴埔和稔園，在大嶼山西北岸一帶流入東涌灣。
  15. The river indus is one of the largest river systems in the new territories, with a total catchment area including that of the river beas and other tributaries of around 65 square kilometres. its main stream flows westward through man uk pin, kwan tei and sheung shui, until it joins the shenzhen river at lo wu

    梧桐河是新界最大的河溪系統之一，河流的集水區總面積包括雙魚河和其他支流約65平方公里，梧桐河的主流向西伸展，流經萬屋邊軍地和上水，于羅湖附近注入深圳河。
  16. Based on analyzing discharge data in guide, xunhua, tongren hydrologic station and river course character, propagation time of different discharge in different river course is presented, and prediction period of interval flood, main stream flood during construction and operation period are acquired

    通過對貴德、循化、同仁水文站流量資料以及河道特性的分析研究，得出不同流量在不同河道上的傳播時間，歸納出區間洪水和幹流洪水在施工期和運行期的預見期。
  17. Shui buya hydro - hinge is the upest cock step of three - step cascade hydroelectric power stations from upstream to down stream on the middle low reach of the main course of qingjiang river, which is going to be developped by hubei qingjiang hydroelectric development ltd after constructing ge he yan and gao ba zhou hydroelectric power stations

    水布埡水利樞紐是湖北清江水電開發有限責任公司繼隔河巖、高壩洲水電站之後，在清江中下游幹流上實施三級梯級開發的最上一級龍頭水電站工程。
  18. Abstract : in the face of historical opportunity of state carrying out west development strategy, raising returning the grain plots to forestry and grass and rebuilding mountains and rivers beautiful, points at trunks stream area of tarim river especially green corridor ecology worsen real problem of lower reaches, analyzes actual reasons of producing problem, under the premise of clearing and definiting returning the grain plots to forestry ( grass ) is main measure of improving ecology, expounds effects and meaning of returning the grain plots to forestry ( grass ) for improving ecology of the region, discusses returning the grain plots to forestry ( grass ) should master and handle improving ecology with economic development, improving ecology with agricultural structure regulation, the relationship of modern technology appliance with traditional style and approaches reasonable forestry and grass proportion and scientific combining style of forestry and grass in carrying out returing the grain plots to forestry ( grass )

    文摘:在國家實施西部大開發戰略，提出退耕還林（草） ，再造山川秀美的歷史機遇面前，針對塔里木河幹流區尤其是下游綠色走廊生態環境惡化的現實問題，分析產生問題的具體原因，闡明在合理開發、利用和配置水資源的前提下，退耕還林（草）是改善生態環境的有力措施以及實施退耕還林（草）對改善該區域生態環境的作用和意義，論述退耕還林（草）應掌握和處理好改善生態與經濟發展、改善生態與農業結構調整、現代技術應用與傳統方式的關系，探討退耕還林（草）中合理的林草比例及科學的林草結合方式。
  19. In the face of historical opportunity of state carrying out west development strategy, raising returning the grain plots to forestry and grass and rebuilding mountains and rivers beautiful, points at trunks stream area of tarim river especially green corridor ecology worsen real problem of lower reaches, analyzes actual reasons of producing problem, under the premise of clearing and definiting returning the grain plots to forestry ( grass ) is main measure of improving ecology, expounds effects and meaning of returning the grain plots to forestry ( grass ) for improving ecology of the region, discusses returning the grain plots to forestry ( grass ) should master and handle improving ecology with economic development, improving ecology with agricultural structure regulation, the relationship of modern technology appliance with traditional style and approaches reasonable forestry and grass proportion and scientific combining style of forestry and grass in carrying out returing the grain plots to forestry ( grass )

    在國家實施西部大開發戰略，提出退耕還林（草） ，再造山川秀美的歷史機遇面前，針對塔里木河幹流區尤其是下游綠色走廊生態環境惡化的現實問題，分析產生問題的具體原因，闡明在合理開發、利用和配置水資源的前提下，退耕還林（草）是改善生態環境的有力措施以及實施退耕還林（草）對改善該區域生態環境的作用和意義，論述退耕還林（草）應掌握和處理好改善生態與經濟發展、改善生態與農業結構調整、現代技術應用與傳統方式的關系，探討退耕還林（草）中合理的林草比例及科學的林草結合方式。
  20. This thesis is main analysis three gorges project to the great significance of the yangtze river shipping with main influence, make use of the safe condition of magistracy of yangtze river trunk line to synthesize the valuation way, to yangtze river upper stream water top transportation safety proceed take the gauge of, reason of detailed analysis trouble, find out the safe weak link that ascend of management, actual circumstance after join teetering the three gorges water area the water, bring up to establish the three gorges water area the shipping safety management system ' s speculation, provide the upper grade to test, then slice solid enhance the water on the transportation safe manage, and insure the three gorges water area the water on the transportation the stability of the safe situation

    而近年來，長江上遊船舶航行秩序不穩定，事故多發，安全形勢不斷惡化，使三峽庫區形成后的航運安全管理顯得尤為重要和突出。本文主要分析三峽工程對長江航運的重大意義和主要影響，運用長江干線轄區安全狀況綜合評估辦法，對長江上游水上交通安全進行評估，詳細分析事故原因，找出安全管理上的薄弱環節，結合三峽庫區蓄水后的實際情況，提出建立三峽庫區航運安全管理體系的構想，供上級參考，以切實加強水上交通安全管理，確保三峽庫區水上交通安全形勢的穩定。
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