被水沖蝕的 的英文怎麼說
中文拼音 [bèishuǐchōngshíde]
被水沖蝕的
英文
waterworn-
2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure
龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重，減少土壤砂粒含量，增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比，以及增加粉粒含量，從而降低土壤分散度，提高土壤團聚性，增加土壤團粒結構數量，改善土壤的透水性，促進良好土壤結構的形成，最終提高土壤的蓄水保肥性能，增強土壤的抗蝕性和抗沖性。It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands
摘要在野外調查、實測的基礎上，採用因子分析、系統聚類分析的方法，根據土壤層水土保持功能的強弱，將黃浦江源區主要植被類型分為4類：落闊林、灌木林為第一類，表現出很強的水土保持功能；茶園、草地、松林為第二類，土壤水土保持功能較強；毛竹林、常綠闊葉林表現出較強的抗蝕性和抗沖性，但滲透性能並不突出，土壤貯水能力也一般，水土保持功能中等，為第三類；裸露地水土保持性能很差，單獨作為第四類，其滲透性、抗蝕性、抗沖性、土壤水庫容都顯著小於其他各樣地。In charge of one of major subjects of the national eighth five - year plan, i. e. " study on shotcreting techniques of polyacrylate emulsion cement mortar for impermeability coating of pu ding rcc dam ", the achievement of which has been appraised by the ministry of electric power and evaluated as reaching national leading level. 2. in charge of the major subject aided by the committee of national natural science funds, " study on durability of high bolumes of fly ash concrete ", the first phase achievement of which has been commended by the committee. 3. in charge of one of major subjects of the national ninth five - year plan, i. e. " study on high performance concrete in marine engineering, design and construction ". 4. acting as one of editors - in - chief of " technical specification for abrasion and cavities resistance of concrete in hydraulic structures ", which is issued by the ministry of water resources. 5. by providing the repairing and strengthening schemes on seepage and cracks of the basement of nanjing lukou international airport, the air traffic opening of the airport was ensured as scheduled. 6. consulting services on techniques of high performance and abrasion - erosion resistance concrete for three - gorges project, anti - corrosion of reinforced concrete strutures for the ore port of shanghai baoshan iron and steel works, mass fly ash concrete for jiangyin yangtze river bridge and pumping concrete for nanjing yangtze river second bridge
主持國家「八五」攻關項目「普定碾壓混凝土壩上游面丙乳砂漿防滲層大面積施工工藝研究」 ，成果通過部級鑒定，評價屬國內領先水平； 2 .主持國家自然科學基金重大項目「高摻量粉煤灰混凝土的長期性能研究「 ，階段成果獲國家自然科學基金委通報表彰與獎勵； 3 .主持國家「九五」攻關項目「海工高性能混凝土成套技術研究」 ； 4 .水利部「水工混凝土抗沖磨防空蝕技術規范」的主編之一； 5 .為南京祿口國際機場地下室修漏與裂縫補提出技術方案被采納並實施，為機場如期通航作出貢獻； 6 .為三峽工程抗沖磨高性能混凝土技術、上海寶鋼礦石碼頭鋼筋混凝土防腐蝕技術、江陰長江大橋大體積粉煤灰混凝土技術、南京長江二橋泵送混凝土技術等提供咨詢建議。One company selling hydrochloric acid for etching cement floors reckoned that, because it was in gel form and could legally be washed down the drain, the product was environmentally friendly
一家銷售蝕刻水泥地鹽酸的公司以為鹽酸為膠液產品，可以被合法地沖進下水道，因此是環保產品。Hydraulic pound, vibrate, noise and cavitation are the main difficult problems in water hydraulic valves, and finite element numerical analysis is proved to be an effective computational method, so numerical simulation and visualizing research on the flow field in water hydraulic valves by applying finite volume method is very important
水壓閥中的液壓沖擊、振動、噪聲以及水壓閥中的氣蝕是研製水壓閥存在的主要難題，而有限體積數值計算方法又被證實是一種可行而有效的流場計演算法，因此應用有限體積法對水壓閥閥道內流場進行數值模擬和可視化研究，是非常有意義，也是非常重要的。A measurable rise in sea level will have a severe economic impact on low - lying coastal areas and islands, for examples, increasing the beach erosion rates along coastlines, rising sea level displacing fresh groundwater for a substantial distance inland
所以，海平面的顯著上升對沿岸低洼地區及海島會造成嚴重的經濟損害，例如：加速沿岸沙灘被海水的沖蝕地下淡水被上升的海水推向更遠的內陸地方。Coal workings line the route in this hilly, washed out section
煤礦內巷道位於這個多坡的被水沖蝕地區的道路兩旁。分享友人