換氣孔 的英文怎麼說

中文拼音 [huànkǒng]
換氣孔 英文
air-vent
  • : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
  • : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
  • 氣孔 : [礦物學] blowhole; [植物學] stoma; [動物學] spiracle; pore; stigma; [冶金學] gas hole; gas pocket; [建築] air hole
  1. And then, metal structure with aspect ratio 30 was obtained in our laboratory. eventually, a few micro parts with high aspect ratio were fabricated by liga process under the optimum condition. there were key parts of micro thruster, netlike nickel antielectron modulator, micro copper radiator, stainless steel micro components and many filter mediums with different shapes and dimensions

    最後,我們利用liga技術加工的獨特優點,以發展其高深寬比技術的實際應用,先後製作了狹縫陣列鎳結構微推進器關鍵部件、薄壁網狀多鎳結構正電子慢化體、微型銅結構和多種材料不同、尺寸各異的過濾介質,還結合利用liga技術和微細電火花技術的加工優點,製作出了不銹鋼微結構
  2. Conscious that the human organism, normally capable of sustaining an atmospheric pressure of 19 tons, when elevated to a considerable altitude in the terrestrial atmosphere suffered with arithmetical progression of intensity, according as the line of demarcation between troposphere and stratosphere was approximated, from nasal hemorrhage, impeded respiration and vertigo, when proposing this problem for solution he had conjectured as a working hypothesis which could not be proved impossible that a more adaptable and differently anatomically constructed race of beings might subsist otherwise under martian, mercurial, veneral, jovian, saturnian, neptunian or uranian sufficient and equivalent conditions, though an apogean humanity of beings created in varying forms with finite differences resulting similar to the whole and to one another would probably there as here remain inalterably and inalienably attached to vanities, to vanities of vanities and all that is vanity

    人體組織通常能夠抗得住十九噸的壓169 ,可是一旦在地球的大層里上升到相當的高度,越是接近對流層與平流層的境界線,鼻出血吸呼困難以及眩暈,隨著算術級數就越發嚴重起來。他曉得這一點,尋求解答時就設想出這樣一個難以證明是不可能的行之有效的假定:倘若個更富於適應性,解剖學上的構造也有所不同的種族,說不定就能在火星水星金星木星土星海王星或天王星那充足而相同的條件下生存下來。然而那個遠地點170的人類種族,盡管在構造方面與地球上的人類有著一定限度的不同之處,整個來說彼此卻有著相似的種種形態。
  3. Suspended solids including fine particles and colloids cannot be removed efficiently with gravitation sedimentation ; they are removed using centrifuge, dissolved air flotation, diatomaceous earth filtration, coagulation sedimentation plus rapid sand filtration while dissolved solids are removed with ion exchange, ultrafiltration, activated carbon adsorption and chemical oxidation

    懸浮固體之去除包括微顆粒及膠體物,無法以重力沉澱之物質,可採用離心分離機、空浮除法、矽藻土過濾法、混凝沉澱加快濾池等去除之。而溶解性固體去除則採用離子交法、微細濾膜過濾、活性碳吸附以及化學氧化等去除之。
  4. As to the work about theory analysis, at first, the paper describes the atomizing and humidifying process of the centrifugal nozzle with firing pin type, high pressure and little aperture and liquid physical properties. later, combining with the structure characters of this kind of nozzle, the paper studies on the theory of the atomizing and humidifying process by three phases, which is water film forming phase, water film falling into pieces phase, and heat and mass transfer between water and air phase in turn

    理論工作方面,首先描述了撞針型高壓小徑離心式噴嘴的霧化加濕過程和液體的物理性質,然後結合撞針型高壓小徑離心式噴嘴的結構特點,將其霧化加濕過程分三個階段進行機理上的研究,這三個階段依次為液膜形成、液膜初次破碎及二次霧化、水與空的熱濕交
  5. Minute hardness testing systems, hardness meters vickers, rockwell, shore, metalloscopes, magnetic detectors, demagnetizers, metallographic inspection devices, surface roughness meters, electrical micrometers, air micrometers, mu meters, electrical converters, bore micrometers, cylindrical gauges, block gauges, eccentricity meters, precision bases, others

    微小硬度系統硬度計維克斯洛氏邵氏金屬顯微鏡磁力探測機脫磁機金屬組織檢查裝置表面粗糙測定器電微型壓力機空微型壓力機微米表電轉器鏜微型壓力機缸徑規塊規偏芯測定器精密加工臺等等。
  6. The tracheae runs into a pair of stigmas at the head laterally, a pair of trichobothria is at posterior end of body, and each of the large paired styles has a opening of spinning glands respectively are unique to myriapod

    特別是,管經過在它頭部外側的一對門上與外界交;軀干後端有一對特殊的盅毛;巨大而成對的針突具有各自的紡績腺的開
  7. 4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes, the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated. the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established. the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases, local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant, heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases, while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant, change of the axial mass flowrate has effect on the whole cavity

    結果表明,預旋進的優點在於增強了葉片冷卻附近的對流熱效果,局部努謝爾數隨預旋角的增大而有所減小;隨旋轉雷諾數的增加,不論是內轉靜腔室還是預旋腔室的靜盤上的溫度都不同程度的降低:當軸向中心進質量流量不變時,隨預旋進的質量流量增加,內轉靜腔室的轉盤盤面上的熱基本沒有變化,而預旋腔室的轉盤盤面上的熱效果增強;當預旋進質量流量不變時,軸向中心進的質量流量的改變對整個盤腔都有影響。
  8. Stomatal pores on the surface of leaf are gateways of gas exchange between plants and atmosphere

    是植物與外界環境進行體交的門戶。
  9. Results show that the influence of mainstream reynolds numbers on heat transfer coefficience is little and the heat transfer coefficience raise with the increase of reynolds numbers. the influence of the position of holes on heat transfer coefficience is complex and correlate with the mainstream speed and the balde surface curvature. and the influence of blowing ratio on heat transfer coefficience is more great ( especially to stator ), and show a complex relation to mainstream reynolds number and the position of holes

    實驗結果表明,不同位出流的熱由於排下游表面來流速度及葉片表面曲率的不同而有不同的規律,而主流雷諾數對葉片表面特別是壓力面和前緣區域的熱系數比的影響較小,吹風比對熱系數影響較大(特別是導葉) ,並且隨位置和來流雷諾數的變化而情況復雜。
  10. And experimental study on the heat transfer performance and pressure drop characteristic of the process of bubbling evaporative cooling are carried. as there are so little attention and studies on the process bubbling evaporative cooling about heat transfer in the world at present, this paper mainly deals with the effects of the different bare tower velocity, weir height, heat flux density and plate perforation geometries on the heat transfer coefficient and the pressure drop of the process of air flowing

    由於目前國內外對鼓泡蒸發冷卻過程在熱方面的關注和研究較少,本文對不同空塔速度、不同堰高、不同熱流密度、多板的不同幾何尺寸對熱系數及空流動過程阻力的影響進行了實驗研究及理論分析,總結了本實驗條件下熱及阻力的實驗關聯式。
  11. One cooling method that has gained increasing importance is endwall film - cooling, where coolant air is discharged though discrete holes in the inner and outer endwalls of a turbine blade passage. after leaving the holes, the coolant forms a protective layer between the hot mainstream gas and the surface that is to be protected

    目前廣泛採用的一種重要冷卻方法是渦輪葉柵端壁膜冷卻,該方法中冷空穿過渦輪葉片上內外端壁離散冷卻進行交,且冷空流經冷卻后在主流熱空與被保護表面之間形成保護層。
  12. Jet impingement cooling is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure. as regard as the combustor flame tube cooling structure is concerned, the impingement - converse convection - film composite cooling is an effective method, in this composite cooling structure, the impingement cooling problem could be modeled as impingement inside semi - confined channel

    對于沖擊-逆向對流-膜復合冷卻的火焰筒結構而言,火焰筒壁面冷側的沖擊冷卻實質上是半封閉通道的沖擊冷卻,即沖擊射流從沖擊板噴出,沖擊到熱靶面后形成壁面射流沿通道單方向流出。
  13. What, above all, manifested the shrewdness of the steward, and the profound science of the master, the one in carrying out the ideas of the other, was that this house which appeared only the night before so sad and gloomy, impregnated with that sickly smell one can almost fancy to be the smell of time, had in a single day acquired the aspect of life, was scented with its master s favorite perfumes, and had the very light regulated according to his wish

    還有一點是最能顯出主人學識淵博指揮有方理家辦事得力的,就是:這座閑置了二十年的房子,在頭一天晚上還是這樣凄冷陰森,充滿了令人聞之作嘔的味,幾乎使人覺得好象嗅到了那陳年的息,但在第二天,它卻上了一副生勃勃的面,散發出了房子主人所喜愛的芳香,透露出使他心滿意足的光線。
  14. The effects of blow ratio and rows on film cooling effectiveness and heat transfer coefficient was studied

    研究了吹風比、排等因素對膜冷卻效果和熱系數的影響。
  15. The main results indicated that : significant differences exist in diurnal average transpiration rate and the range of diurnal transpiration rate ; the transpiration rate of sawtooth oak, amorpha, lalang grass varied with a regular double apex rhythm, but that of the rest varied with a regular single apex rhythm, stomatal conductance play a maximal important role in transpiration rate, temperature ( air temperature, the earth ' s surface temperature ) also influence the transpiration rate ; transpiration rate has prominent negative correlation with the relative air humidity, the biggest coefficient is 0. 866

    筆者對日照沿海防護林幾種主要木本植物和草本植物的蒸騰速率和環境因子的關系進行了研究,結果表明: 8種植物日平均蒸騰速率和蒸騰速率日變幅各異;麻櫟、紫穗槐和白茅的蒸騰速率日變呈現出雙峰式的變化規律,其它5種植物蒸騰速率表現為單峰式的變化規律;導度影響著植物的蒸騰速率,溫度(溫、地面溫度)是影響植物蒸騰速率的主要因子;空相對濕度和蒸騰速率表現為顯著或極顯著負相關,相關系數高達0 . 866 。
  16. Thaw settlement cause negative friction. this paper base on the thought of " initiative cooling ", aim at three problems existing in common concrete pile used in frozen soil, a new type of pile is proposed to overcome the disadvantages of the classical pile used in frozen soil. pile body within active layer is fluted and refilled with porous materials such as gravels and ballasts, convection will be occur and then thermal exchange inside porous material in winter while only heat conduction exists in summer, as a result the soil around flutings will be cooled, so the top line of permafrost will be drive up

    本文基於「主動冷卻」地基的思想,以及針對凍土地區普通混凝土樁存在的三大問題,提出了一種新型樁的設計思路,運用數值模擬試驗手段對其冷卻機理與加固機理進行了系統研究,即在凍融活動層的深度范圍內,在混凝土樁身的表面刻槽,修築完時槽內填充碎石、塊石等多介質,通過外界大溫度的自然波動下多介質在冬季時存在的對流熱機制,而在夏季只存在熱傳導,來達到主動冷卻樁周凍土和抬升凍土上限的目的。
  17. The moisture buffering effect of this layer depends very much on the air exchange rate and also on the ratio of the surface area of the buffer to the volume of the room

    濕緩沖效果依賴于空率和房間內多緩沖材料的表面積和空間的比率。
  18. When in experiment, the air was heated by the film heater installed on the above and below surface of channel, adopting various air velocity of flow, test import ' s and export ' s temperature, wall temperature, fluid flux and the drop of pressure, and the other parameter. adopting nu and nu0 to analyze the baffle ' s situation of heat transfer and fluid flow, which baffle was holed various diameters

    實驗時,通過矩形通道上下壁面敷設的電加熱膜加熱通道空,改變空流速,測試不同工況時的進出口溫度、壁面溫度、流體流量和壓力損失等參數,並採用無量綱努謝爾特準則數nu 、 nu _ 0等分析了設置不同開折流板的熱與流動情況。
  19. Guards against the bedsore to be mad the type mattress surface openshas very many pores, spouts the gas using the mattress to carry offthe human body in vitro moisture content, reduces the humidity, thusthe dry skin, and the replacement foul air, the suppression bacteriumgrows, as well as will get sick the human body pressure to disperse onthe mattress the principle, will effectively come effectively toprevent the bedsore the production, will be specially for reduces thelong - term bed patient ' s worry and the pain, for will reduce nursingstaff ' s labor intensity to make

    防褥瘡式床墊表面開有很多微,利用床墊噴出的體帶走人體體外水分,降低濕度,從而乾燥皮膚,並置污濁空,抑制細菌生長,以及將病人體壓分散在床墊上的原理,來有效的防止褥瘡的產生,是專為減輕長期臥床病人的煩惱和痛苦,為減輕護理人員的勞動強度而製造的。
  20. Determination of density and total porosity of uranium dioxide pellets by the mercury displacement method

    水銀置法測定二氧化鈾顆粒的密度和總
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