gravity irrigation 中文意思是什麼

gravity irrigation 解釋
自留灌溉
  • gravity : n. 1. 認真，嚴肅，莊重。2. 重要性，嚴重性；危險性。3. 重量。4. 【物理學】重力，引力，地心吸力。5. 【音樂】（音調的）低沉。
  • 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。
  1. It has the arable land over 4. 1 million hectares, and the soil quality is good, the terrain is flat and concentrated, which is convenient for piloting gravity irrigation and large scale reclamation

    現有耕地410多萬公頃，而且土質好，地勢平坦，集中連片，非常便於引水自流灌溉和大規模開墾。
  2. The system skillfully takes advantage of the naturltopography and the eurved waterflowing pattern om the middle reach of the mingjiang river, thus combining water - bifurcation, flood - diversion, sand - dredging and water - controlling as a whole gravity irrigation system, which guarantees the chengdu plain a land of abundance

    都江堰巧妙利用岷江出山口處的地形、水脈、水勢、乘勢利導，使堤防、分水、泄洪、排沙、控流相互依存，共為體系，保證了防洪、灌溉、水運和用水綜合效益的發揮，孕育了舉世聞名的「天府之國」 。
  3. Based on the empirical equations used for calculating the cost of main and distribution pipes of gravity sprinkler irrigation project, equations for calculating. 4. economical hydraulic gradient, pipe length and the minimum cost of the main pipe were derived through theoretical analysis and mathematical transformation

    3 .在建立的自壓噴灌工程主幹管和配水管道的造價計算經驗公式基礎上，通過理論分析和數學變換，推導得出了自壓噴灌主幹管經濟水力坡度、經濟管長和最低造價計算公式。
  4. Soil texture, moisture, bulk specific gravity, ground temperature and irrigation water temperature are the major factors which influence the infiltration capacities of frozen soils

    土壤質地、容重、含水量、地溫和灌溉水溫是影響凍融土壤水分入滲的主要因素。
  5. Application of gravity sprinkler irrigation in manual grassland

    自壓噴灌技術在人工草場灌溉中的應用
  6. 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。
分享友人
分享到 Line

分享到臉書