灌水次數 的英文怎麼說

中文拼音 [guànshuǐcìshǔ]
灌水次數 英文
frequency of irrigation
  • 灌 : Ⅰ動詞1 （輸水澆土） irrigate 2 （倒進去; 注入） pour in; fill 3 （飲酒; 勉強他人飲酒） drink wine...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 灌水 : irrigation; watering
  • 次數 : number of times; frequency
  1. The paper establishes a ecological transect, with a length of 90 km and width of 16 km, utilizing the part of tm data on 16th august 1998, from harbin to the natural secondary forests in maoershan, heilongjiang province. with supervised classification, the tm data which had been corrected and enhanced via erdas, combining the data of gps in the field, was classified by seven types including : residential area, glebe, paddy field

    本論文利用1998年8月16日的tm衛星數據的一部分，設置從黑龍江省哈爾濱市到帽兒山天然次生林區，長90km ，寬16km的生態研究樣帶。通過用erdas對衛星數據的校正、圖像增強等處理，結合gps野外實地調查數據，進行有監督分類。共分為7種類型：居民點、旱田、水田、河流、灌叢、闊葉林、針葉林，並建立了衛星影像分類解譯標志。
  2. Through calculating annual expenses and analyzing investment risk, an optimization model firstly put forward. the coefficient of investment profit of the irrigation system, which includes pipe distribution networks, drop irrigation device, is minimized. the coefficient is optimization design ' s target function which is by the genetic algorithms to solve

    在系統優化方面，單獨作為一個模塊用vc + +實現，本文首次提出了以包括管網、灌水器、水泵、電機等設備在內的微灌系統的益本比最大為目標函數，利用遺傳演算法求解的方法。
  3. The grass irrigation system means that, under the certain condition of climate, soil and planting technology, supplying water in time, watering times and hours for higher output were guaranteed

    摘要牧草灌溉制度是指牧草在一定氣候、土壤和栽培技術條件下，為保證飼草料種植地土壤水分的適時供給並獲得穩產高產所確定的灌溉定額、灌水定額、灌水次數和灌水時間。
  4. Throug the study on irrigation quota and irrigation times for licorice root planted in arid sandy land of middle ningxia, the result shows : by increasing irrigation frequency and irrigation fixed quantity properly, it can play a positive role in the conserving and increasing water - holding capacity in arid - belt sandy area

    摘要通過對寧夏中部乾旱帶沙地種植甘草的不同灌水定額及次數的研究，結果表明，適當的增加灌水次數和灌水定額對于保持和增加乾旱帶沙壤土持水率具有積極的作用，有利於植物的生長發育。
  5. Irrigation quota can be calculated by irrigation water requirement per time and irrigation times

    灌溉定額由灌水定額及灌水次數決定。
  6. The yield of winter wheat went down as the times of the saline water irrigation increased. if the times of the saline water irrigation was same, the saline water irrigated at the prophase of crop growth, the crop yields was lower

    從小麥產量分析，灌溉鹹水次數越多，產量越低;當灌溉次數相同時，則越是生育後期灌溉鹹水對產量的影響愈小。
  7. Based on the data obtained from the experiments on the soil with same structure under three cropping patterns, this paper makes a research into the numerical relation between the parameters of infiltration model and physical parameters of soil, and forms the statistic model about them, in order to produce a simple and easily used calculation method and a model for infiltration parameters and to provide the calculation parameters as required for the technical parameters of the water - saving irrigation

    本文以榆次同一質地三種不同耕作方式下的土壤在自然條件下進行的大量試驗結果為依據，分析了土壤入滲模型參數與所獲得的土壤物理參數之間的定量關系，研究和建立土壤入滲模型參數與土壤物理性狀參數間的統計模型，為地面灌溉節水向深層次的發展提供簡單易行的土壤入滲參數確定方法和模型，為確定節水灌水技術參數提供所需的計算參數。
  8. In quantitative terms, from the year of 1973 to 1990, the absolute change extent obey the following sequence : dry field ( 8. 61 % ) > shrub land ( - 7. 06 % ) > paddy field ( - 3. 52 % ) > naked land ( 2. 12 % ) > tea land ( - 1. 92 % ) > forest land ( 1. 06 % ) > grassland ( - 0. 61 % ) > rural settlement ( 0. 58 % ) > traffic and industrial land ( 0. 53 % ) > water ( 0. 1 % ) > urban land ( 0. 06 % ) ; and from 1990 to 2002, dry field ( - 9. 79 % ) > grassland ( 3. 33 % ) > forest land ( 3. 18 % ) > paddy field ( 1. 98 % ) > naked land ( - 1. 45 % ) > rural settlement ( 0. 85 % ) > shrub land ( 0. 73 % ) > water ( 0. 48 % ) > traffic and industrial land ( 0. 47 % ) > urban land ( 0. 27 % ) > tea land ( 0 ) from the year of 1973 through 2002, the cultivated land increased and then decreased

    從數量上來看， 1973 1990年，變化幅度從大到小依次是旱地>灌木林>水田>裸巖地>其他林地>有林地>灌草地>農村居民點>交通工礦用地>水域>城鎮用地; 1990 2002年則為旱地>灌草地>有林地>水田>裸巖地>農村居民點>灌木林>水域>交通工礦用地>城鎮用地>其他林地。各地類的變化方向和強度存在較大差異。 1973年至2002年，耕地總量經歷了先增后減的變化。
  9. Irrigation water requirement per time = ( soil water irrigation maximum - soil water irrigation minimum ) ? scheming wetted soil layer depth. irrigation cycle and irrigation times were decided by soil water irrigation maximum, minimum and consumption velocity

    灌水周期和灌水次數由灌溉飽和點與補償點及土壤水分消耗速率決定，表現為強耗水期灌水周期短，灌水次數多，其後依次按中、弱、微耗水期灌水周期增長，灌水次數減少。
  10. Aimed at the current problem of pipeline layout optimization technique, the research of irrigation pipeline layout and pipe diameter optimization has been done, the gis ( geography information system ) and graph theory were first put forwarded to applyed to the design of low pressure pipeline irrigation project in the paper. with the support of gis, the minimal spanning tree theory of graph theory and 120 project theory can be applied to irrigation pipeline ' s layout optimization. at the aspect of pipe diameter optimization, simplicial method and interior - point method are been used in solve liner optimization model of pipe diameter to reach minimum project cost or a nnual working cost of low pressure pipeline irrigation

    本文主要針對當前南方地區低壓管道輸水灌溉規劃設計中存在的技術難點，開發研究先進實用的樹狀低壓輸水灌溉管網計算機輔助設計系統。首次提出了將gis （地理信息系統）和圖論技術應用於低壓管道輸水灌溉規劃設計及灌溉管網優化中，在gis支持環境下，應用圖論中的最小生成樹法和120規劃進行管道的最優化布置。建立以管道輸水灌溉系統的年折算費用最小為目標函數的管徑優化線性規劃模型，並將內點法應用於線性優化模型的求解。
  11. ( 3 ) the paper sort the influencing elements and parameters according to the importande using of hierarchy process ; leaching. it also gets genera sort of biggest target of agricultural and ecological benefit according to comparative importance., this paper verifies the sensitivity of program, and extends the apply scopes of hierarchy analysis method, at the same time, it can provid definit technology support and reference for establishing distrubiting pattern optimization modle of bid system in hetao irrigation district for the future

    （ 3 ）針對節水管理制度的影響因素眾多，利用層次分析方法對影響因素、參數進行了重要性排序，得出了相對于農業、生態效益最大總目標的重要性總排序，並進行了方案的靈敏性檢驗，得出了在節水灌溉管理中應優先考慮的影響因素為控制地下水位。
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