irrigation head 中文意思是什麼

irrigation head 解釋
灌溉水頭
  • irrigation : n. 1. 灌溉；水利。2. 【醫學】沖洗（法），〈pl. 〉沖注洗劑。adj. -al ,-ist n. 灌溉者，水利專家。
  • head : n 1 頭，頭部，首。2 頭腦，才能；智力，想像力，理解力。3 前部，上部；頂端，尖突部；船長；（書頁等...
  1. Two aspects of the problem are discussed : one is that lift irrigation is no need when abstraction volume capability of canal head can meet the demand ; the other is that lift irrigation is in need when abstraction volume capability of canal head can not meet the demand

    它包括兩個方面：一是當渠首可引水量能滿足灌區灌溉用水量時，則不需要提水灌溉；二是當渠首可引水量尚不能滿足灌區灌溉用水量時，則需提水灌溉來補充灌溉用水量。
  2. The study tours covered reginas shelter belt research institute, the indian head research center, community pastures, saskatoon irrigation diversity research center, the agriculture research center at saskatchewan university, the swift current research station, lethbridges irrigation demonstration farms and research center, the alberta research institute, the elerslie research farm, the lacombe research stations, the western beef group, transaltas coal mine land reclamation project and some typical farms and pastures

    參觀考察了位於里賈納的防護林研究中心印第安海德研究中心社區牧場薩斯卡通灌溉多樣化研究中心薩斯喀徹溫大學內的聯邦農業部農業研究中心斯威夫特卡倫特研究站萊斯布里奇的灌溉示範農場萊斯布里奇研究中心阿爾伯塔省研究院elerslie研究農場拉康姆豬研究站和西部肉牛小組transalta煤礦復墾項目以及一些典型的農牧場。
  3. The degree of consistency change of sprinkler head and the o 8mm depression drip pipe with the change of pressure has been tested. the main conclusion of this study has been produced as follows : ( 1 ) the theory will be correct and notable benefit will be obtained through the utilization of the frequency changer in tube - well irrigation, spray irrigation and drip irrigation. ( 2 ) some energy saving effect of the frequency changer utilization in tube - well irrigation, spray irrigation and drip irrigation will be produced, 37

    本項目的研究內容主要包括變頻調速裝置在管灌、微噴以及大棚滴灌中的節能效果、變頻調速裝置對微噴和大棚滴灌均勻度的影響以及變頻調速裝置在管灌中進行「恆量變壓」變頻運行試驗等，同時，對微噴頭與中smm低壓插入式滴灌帶的灌溉均勻度隨壓力變化情況進行一r試驗研究。
  4. During wheat and barley bred in winter in sanya, some technological characteristics concerned must be wielded according to the ecological conditions there. 1 ) carefully select materials and avoid planting the materials that can not head in sanya. 2 ) cultivated measure : spread lime before ploughing ; and make furrows during soil preparation. spread funandan in sowing furrows. after every irrigation and heavy rains, surplus water must be drained off immediately and soil must be intertilled in time. it is also a key measure in breeding in winter to prevent and eliminate the plant disease, pest and mice during plant growing period. 3 ) the flowering period of parent for hybridization must be adjusted. 4 ) the criterion for each trait selection to breeding materials should be soften to different degrees

    在三亞冬繁麥類時，應根據當地生態條件掌握好有關技術特點：慎重挑選冬繁材料，盡量避免攜帶可能在三亞不抽穗的材料；栽培措施應注意耕翻前撒施石灰，整地需開廂起壠，播種溝先撒呋喃丹，灌水及大雨後要排除余水，及時鬆土，生育期間注意防治病蟲鼠害；雜交親本應注意調節花期；對育種材料各性狀的選擇標準都要不同程度地放寬。
  5. Experimental research on micro - head flexible pipe irrigation technology for cotton

    北方石質山地裂隙潛流動態及調控利用技術研究
  6. The factory mainly deals in : flat inclined transfer single double - die stand single multi - die head automatic hollow blow molding machine, storage type plastic hollow automatic molding machine, single dual - pipe extruder, corrugated tube agricultural drip irrigation tube extruder, extrusion machine set for irregular shape products, manual air blower, heavy - duty large -, medium - and small - scale powerful granulator, automatic vacuum suction molding thermoforming packing machine, and high - grade plastic granulator

    振興塑膠機械廠主營項目為：平斜移單雙模架單多機頭全自動中空吹塑機儲料式塑膠中空自動成型機單雙管材擠出機組波紋管農用滴灌管擠出機組異型材擠出機組手啤吹氣機重型大中小型強力粉碎機全自動真空吸塑熱成型包裝機高品級塑料造粒機組。
  7. The products include : flat inclined transfer single double - die stand single multi - die head automatic hollow blow molding machine, storage type plastic hydraulic automatic hollow molding machine, single dual - pipe extruder, corrugated tube agricultural drip irrigation tube extruder, automatic machine set for hard pvc irregular shape products, manual air blower, heavy - duty large -, medium - and small - scale powerful granulator, automatic vacuum packing machine, and high - grade plastic granulator

    主要產品有：單雙管材擠出機組平斜移單雙模架單多機頭全自動中空吹塑機儲料式塑膠中空自動成型機波紋管農用滴灌管擠出機組異型材擠出機型手啤吹氣機重型大中小型強力粉碎機全自動真空吸塑熱成型包裝機高品級塑料造粒機組。
  8. The special structure of zippered plastic pipe zippered seep holes made a greater seepage quantity on the condition of bare pipe ( no anti - blocking material adopted at the mouth of seep holes ). so several kinds of anti - seepage material were adopted in the experiment of this part in order to find the proper anti - seepage material ( nonwoven fabrics glued by neoprene ) and working head ( 3m ' s working herd on initial irrigation )

    由於拉鏈式塑料管的獨特構造（拉鏈式滲水孔口） ，裸管（滲水孔口不採用任何防堵材料）情況下滲流量很大，所以本部分試驗採用了幾種防滲材料試驗，最後通過比較分析，找到了合適的防滲材料（氯汀膠粘無紡布）和工作水頭（初始灌水時3m工作水頭） 。
  9. Research on low - head drip irrigation system

    低壓滴灌系統研究
  10. 2. builds up decision model for water resource ' s optimal distribution of large irrigation areas in this thesis. this model resolves the optimal decision problem of how to distribute water resource to meet maximal total net profit in irrigation basins, when water supply potential of irrigation areas " canal head and bailing capability of pumping station hold the line

    2 、建立了大型灌區水資源優化調度決策模型，研究在灌區渠首供水能力和泵站提水能力一定的條件下，將灌區水資源如何調配才使得灌區總凈收益達到最大值的優化決策問題。
  11. Through analysis and study, it is believed important and feasible that the implemented projects, the importing feng jia - shan reservoir into yang mao - wan reservoir and the water supply from shi tou river to xi ' an city ; form the synthetic analysis of the main factors - quantity, time, apace and user " character, it can be conferred that it is not necessary for the four projects in the western areas to join together at present ; adding gate at the 2 head of lin jiacun trench can only help to relax the problem of lack of water in bao jixia irrigation area, to solve the problem of short of water in the irrigation area needs to take project measures at the trunk and branches of wei he river from lin jia village to the upper stream ; the mode of supplying water of the four projects in the western areas are all by gravity, they can only be supplied one way and ca n ' t be supplied each other

    通過分析研究認為：已實施的引馮濟羊工程和石頭河西安供水工程，是十分必要的和可行的；從水資源配置的主要要素? ?數量、時間、空間和用戶性質的綜合分析研究來看，西部四大工程目前尚無整體聯網的必要；林家村渠首加閘對解決寶雞峽塬上灌區缺水僅能起到緩解作用，從根本上解決塬上灌區的缺水問題，還必須從林家村以上渭河干支流上採取進一步的工程措施；西部四大工程均為重力供水，只能單補，而不能互補。
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