low tunnel 中文意思是什麼

low tunnel 解釋
小拱棚
  • low : adj 1 低的;淺的,矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • tunnel : n 隧道;地道;坑道;管道,煙道,風洞;【礦物】石巷,平峒。 tunnel warfare 地道戰。vt (〈英國〉 l...
  1. Comparison of tunnel thread - drawing therapy and fistulectomy therapy for low - complex anal fistula

    隧道式拖線法與瘺管切除法治療低位復雜性肛瘺的療效比較
  2. Fl - 8 is a close single circumfluence low velocity wind tunnel

    Fl - 8風洞是一座閉口單迴流低速風洞。
  3. The jet engine requires a huge scavenging system sometimes using half as much power as the tunnel itself in order to keep contamination low.

    噴氣發動機試驗要求龐大的排氣清除系統,以減輕污染,該系統有時要耗去風洞本身功率一半之多。
  4. Setting very low speeds in a wind tunnel is always a vexatious problem.

    在風洞中調出低風速來始終是一個麻煩問題。
  5. The structure of jinping cascade 2 hydropower station is a high - head and high discharge diversion tunnel with low crown gate

    錦屏二級水電站是一首部設低閘,採用長隧洞引水的高水頭、大流量的引水式電站。
  6. The electrical conductance of the gold / polymer composite films was tunable, and a low resistivity of the order of 10 ~ ( - 4 ) cm was yield. the conducting mechanism was not determined, perhaps the tunnel effect and the foreign - substance - electron - transfer should be considered

    聚合物金納米粒子復合薄膜的電阻率可調,電阻率最低可達10 ~ ( - 4 ) ? cm量級,導電機制可能與隧道效應及雜質離子導電有關。
  7. Force measurement in a low speed wind tunnel was conducted to investigate the effects of the height of a distant canard wing on the longitudinal aerodynamic characteristics of a forward - swept configuration

    摘要基於前掠翼鴨式前翼布局的風洞測力實驗,分析了距離主機翼較遠的鴨翼相對于主機翼的高度對布局縱向氣動性能的影響。
  8. The tests were conducted in the hypersonic low density wind tunnel at nominal test conditions of mach 16, stagnation temperature 923k, stagnation pressure 1. 40mpa and 7. 30mpa. heat - transfer data were obtained on a hemisphere model, a sharp cone and a big blunt cone respectively by means of infrared thermal mapping techniques, that of a 0. 5mm thickness blunt cone by virtues of thermocouples. furth ermore, heat - transfer on all those models was calculated with the theoretical method

    最後在名義m _ = 16 、 t _ 0 = 923k 、 p _ 0 = 1 . 40mpa及7 . 30mpa的高超聲速低密度風洞中,利用紅外熱圖技術獲得了半球圓柱、尖錐、大鈍頭三個模型表面熱流分佈,利用薄壁法技術得到了一壁厚為0 . 5mm的鈍錐模型表面的熱流分佈,並通過工程理論方法計算了模型表面的氣動熱,把理論計算結果與上述試驗結果比較,幾者符合得較好。
  9. The power station is diversion type power station of low gate dam with a normal storage level of 1268. 0 m, a highest gate dam level of 31 meters and a reservoir capacity of 2, 974, 000 cubic meters, the length of diversion tunnel of which is 19. 57 kilometers, installed capacity is 360mw futang power station is constructed on the basis of deep and thick overburden, the foundation of which mainly consist of five overburdens which, in general, belong to multiple, complex foundation

    福堂水電站位於四川省阿壩藏族羌族自治州汶川縣境內的岷江河段上,電站為低閘引水式開發。正常蓄水位1268 . 0m ,最大閘高31m ,庫容297 . 4萬m ~ 3 ,引水隧洞長19 . 57km ,裝機360mw 。福堂水電站閘壩建於深厚覆蓋層基礎上,基礎主要存在五大覆蓋層,總體屬于多層復雜地基。
  10. High - temp molanstone heat - insulation brick is made with domestic newest energy - effcient fire - proof material by using advaned technologies introduced from abroad. it has the strengths of heat - resistance, high intensity, low heat - conduction coefficient and remarkable energy - saving effects. it can be used in petrolum partition kiln, metallurgical hot stove, ceramic kiln, tunnel kiln, and as linings of many electric stoves. it can also used on fire directly. according to the testing of relevant authorities, this product has reached standards of products from foreign competitors

    高溫莫來石質絕熱磚是我國引進的新技術,國內最新型的節能耐火材料,具有耐高溫、強度高導熱系數小,節能效果顯著等特點,適用於石油裂介爐、冶金熱風爐、陶瓷輥道窯、隧道窯、電瓷抽屜窯、玻璃坩堝窯及各種電爐的內襯,可直接接觸火焰、經有關技術監督部門檢測及使用,產品達到國外同類產品的技術指標。
  11. The main purpose of this study is to simulation a random fluctuation of wind velocity fitted to specified power spectrum in low frequency range in our wind tunnel

    本文研究的目的是在風洞中模擬風速隨機波動的陣風,這個基礎性工作對于開展風洞中的其它研究有著重要意義。
  12. Comparation of different welsh onion varieties in low tunnel cultivation over winter season

    不同大蔥品種小拱棚越冬栽培試驗
  13. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題,在此基礎上,從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性,並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋;本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案,即由用戶終端、集中器和電能管理系統所組成的網路系統,其中,用戶終端到配變集中器用低壓電力線作為通道,中間無需其他硬體中繼設備,集中器到電能管理系統用公用電話網作為通道。
  14. Based on the date of full - scale measurements, modeling wind tunnel tests and theoretical researches of the wind loads on low - rise buildings available, involved the date of the wind tunnel test and computational numerical simulation fulfilled in this paper, the effects of wind loads on low - rise buildings have been studied systematicaly and extensively. it reveled properly the principle of the changes of the surface mean pressures, local pressures, and fluctuating pressures with the building geometry, roof type and slope, wind direction, eave configuration, cladding system, and dominate openings

    本文根據國內外有關低層房屋風荷載的全尺寸實測、模型風洞試驗及其理論方面的研究,包括本文進行的低層房屋屋面風壓分佈的風洞模型試驗和計算機數值模擬計算,對低層房屋的風荷載特性進行了系統而深入的研究,較好地揭示了低層房屋表面的平均風壓、局部風壓和壓力的波動隨房屋的幾何尺寸、屋面形式、屋面坡度、風向角、檐口構造、覆面材料和門窗開洞而變化的特點和規律。
  15. Low speed wind tunnel experiment requires strict of the wind speed, which requires a wild range of wind speed, high precision, and quick adjustment

    低速風洞實驗要求對實驗段的風速有嚴格的控制,要求風速調節范圍寬,精度指標高,調節速度快。
  16. Replacement of high voltage switchboards, transformers and low voltage system of the tunnel power supply system in lion rock tunnel, replacement of field equipment of toll collection system in cross - harbour tunnel and replacement of ventilation control panels, exhaust fans, motors and flexible connectors in aberdeen tunnel

    更換獅子山隧道供電系統的高壓配電板變壓器和低電壓系統更換海底隧道車輛繳費系統的路面設備及更換香港仔隧道的通風控制屏抽氣扇電動機和軟接頭
  17. The construction technology of twin - arch tunnel under the condition of large span, low - burying and soft surrounding rock is fully discussed and deeply studied in engineering analogy methed in the paper. with the study subject of huangmeishan tunnel of maanshan - wuhu expressway

    本論文以黃梅山隧道為研究對象,採用工程類比方法,系統對大跨、淺埋、軟弱圍巖條件下的雙連拱隧道施工技術進行了全面的探討和深入研究。
  18. Our study shows that the market can also be distorted by agency problems of controlling shareholders, in which state acquirers tend to tunnel and invest in projects with low returns

    我們的研究表明公司控制權市場還可能被控股股東代理問題扭曲,即國有收購方趨向于隧道挖掘以及在低回報的項目上投資。
  19. Axial - flow ventilation fan is applicable to canging air ordissipating hear at such places as metal lurgical factory, steel rolling mill, chemical plant, refrigerating chamber, restaurant, grain depot, cultivating field, tunnel, storehousr, residence, ect. while removed the shell, it in the long echaust pipe with series connection method. the fan has complex structure, low noise, wide power selective range

    72型離心通風機可作為工三及大型建築的室內通風換氣,還可作輸入氣體,輸送空氣或其它不自燃的對人體無害的,對鋼鐵材料無腐蝕性的氣體,氣體溫度不得超過80 。
  20. There are many approaches to achieve the purpose, and one of the perfect them is tunnel - cascaded multi - active regions large cavity ld structure, in which not only the effective thickness of the active region increase but also obtain lds ’ low threshold current and high slope efficiency and other properties

    有多種途徑實現ld光束特性的改善,其中採用多有源區隧道結級聯大光腔結構的半導體激光器是既增加有源區等效厚度而又保證ld低閾值電流和高斜率效率等特性的最佳途徑之一。
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