air dam 中文意思是什麼

air dam 解釋
空氣穩定器（空氣阻尼）
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • dam : n 1 水閘，壩，堰。2 壩中的水。3 【礦物】坑道堰。4 （牙科用的）橡皮障。5 〈比喻〉障礙。vt 1 築水閘...
  1. By building a dam instead of new coal plants to meet its growing demand for electricity ， china will give off much less poisonous gases into the air

    通過修建大壩而不是新的煤電廠，來滿足本國對電力的需求，中國將釋放更少的有毒氣體到空中。
  2. This paper establishes a model simulating dam actual placing process and considering the non - continuity of initial temperature on the boundary of new and old concrete, daily air temperature change, concrete - placing temperature, hydration heat, heat insulation on boundary, water - storing process, placing intermission and curing with water. the calculation of stress field considers the concrete weight, static water pressure, thermal stress, different autogenous volume change between rcc and normal concrete, change of elastic modulus of concrete with age and creep action

    考慮了乞今最為全面的初始條件和邊界條件，包括模擬壩體的實際升程過程，考慮了新老混凝土接觸面上的初始溫度不連續，逐日的氣溫變化，混凝土的入倉溫度，水化熱溫升，邊界保溫，水庫蓄水過程，澆築間歇以及灑水養生等因素；應力場的計算考慮了混凝土的自重，靜水壓力，溫度應力，常態混凝土與碾壓混凝土不同的自生體積變形，混凝土的彈性模量隨齡期的變化以及徐變的作用。
  3. Gpr is a newly developed hi - tech survey technique used to detect shallow ground electric differences. we applied gpr to more than 100 projects in zhujiang river delta and hongkong, and obtained good reputations. the application scope involves stratigraphics division, outining of filled stones in the muddly beach, geotechnical prospecting of old wall, karst detecting in the limestone terrain, caving detecting, landslide and slop surveing, the division of wea - thering zone, onion weathering zone, fracture zone and fau - lted zone in the granite area, detecting of buried objects cable, metal nonmetal pipe, channel, air raid she - lter etc. underground in the urban city, archaeology, tracing of orebody, coal measures strata division, testing of the dam and grouting site, quality checking of the surface and foundation of the highway

    的一種高新技術。我公司運用世界最先進的探地雷達設備在珠江三角洲地區和香港開展了百余項探地雷達檢測項目，獲得了良好的聲譽，並被作為深圳市建設局1998年度建設科技成果推廣項目。它主要應用於：山體土石方檢測路基不同回填物界面檢測填海回填物巖溶檢測樁基無損檢測地下管道探測地下隱蔽物探測考古斜坡滑體探測地質結構探測湖底探測高速公路路面及路基檢測。
  4. The plane - wave analytic solution of the coupled fluid - air - solid system and the fem model of air cushion isolations are applied to study the influence of air cushion on earthquake response of dams. the calculations show that air isolation will reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquakes. if the dam and reservoir is isolated by air cushions, it will decrease the hydrodynamic pressures by more than 90 % and the seismic stresses by 20 - 30 %

    將本文首次提出的水體-氣體-結構系統的平面波作用理論解和三維有限元模型，應用於溪洛渡雙曲拱壩的抗震安全性和氣幕隔震可行性研究中，表明氣幕對高拱壩具有良好的隔震性能，可降低動水壓力90以上，壩體地震拱應力20 30 ，減震效果顯著，並使壩體的抗拉安全系數從0 . 93提高到3 . 58 。
  5. 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。
  6. In harsh climate region, the air temperature changes greatly between winter and summer. rcc dam are usually placed without bulk and longitudinal joints, and left free in winter. thus, it ' s unique thermal stress time - space distribution rule increases the difficulty of temperature control and crack control of rcc dam

    由於嚴寒地區冬季氣候寒冷、年內氣溫變化幅度大；碾壓混凝土壩採取通倉澆築、不分縱縫以及越冬長間歇式的施工方法，使其具有獨特的溫度應力時空分佈規律，更增加了碾壓混凝土壩溫控與防裂難度。
  7. For example, some one “ 搞 笑 ” that, although the three gorges dam and the tunnel of english channel have been constructed, there are four projects haven ' t been completed, facing the great wall with tiles, fixing with an air conditioner for the sun, edging with a bonder of gold for the equator and setting rails for the huanghe river

    比如有人搞笑道：盡管三峽大壩造好了，英吉利海峽通隧道了，但世界上還有四大工程沒完成，他們是：給長城貼瓷磚，給太陽裝空調，給赤道鑲金邊，給黃河安欄桿
  8. The mechanical properties of the air cushion are studied theoretically. the fem air isolation model based on the state equation of ideal gas is used to study the effects of air isolation. the calculation results suggest that air isolation can reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquake

    應用在平面波作用下液體-氣體-固體動力系統的理論，分析了大壩隔震氣幕的力學性態；應用基於理想氣體狀態方程的氣幕隔震的壓力有限元模型，對模型氣幕的隔震效果進行了研究。
  9. Based on the theory of interaction of fluid - solid, the fem and semi - analytic method are used to analyze the reaction of dam - reservoir subjected to seismic motion, the analysis includes the effect of water compressibility, reflectance of reservoir bottom and water viscosity. the mechanical properties, isolation mechanism and effects of hydraulic air cushions are studied theoretically

    從流固耦合理論出發，以有限元分析為主要研究手段，並輔之以半解析法，系統深入研究了水可壓縮性、庫底庫底邊界和水體的粘滯性對拱壩地震動水壓力及壩體地震反應的影響及其規律性。
  10. Visit itapu dam, and falls on argentina side where the falling water creates thousands of rainbows hanging in mid - air

    午後返回巴西，參觀巴西與巴拉圭聯手興建的伊太瀑水壩itaipu dam 。
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