通氣小孔 的英文怎麼說
中文拼音 [tōngqìxiǎokǒng]
通氣小孔
英文
ventage-
The anatomical and ultrastructural research in the cotyledon of antirrhinum majus indicated : cutin membrane and sparse epidermal trichome occurred on the surface of cotyledon. stomata protruded appreciably over the epidermis, the ratio of palisade mesophyll and spongy mesophyll was low, the previous evidence showed structural charecater of shade leaf
通過對金魚草子葉的組織學和細胞學研究,發現其表皮角質膜薄,具稀疏表皮毛,氣孔略突出於表皮,柵欄組織與海綿組織比例小,故具有陰性葉的結構特徵。Less reflective than ice, water absorbs more solar rays, speeding the thaw and channeling meltwater into seals ' breathing holes
比冰的反射率小,海水吸收了更多的陽光,加速了融化並使融化后的淡水注入這些通氣孔。Even an air-entraining agent can be used because the minute pores are discontinuous.
甚至可以使用加氣劑,因為小的氣孔是不連通的。Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high
通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析,得到:撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角,噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高,撞針型結構提高了霧化加濕效率,高壓小孔徑的特點為霧化加濕提供了較大的能量,而噴水初溫的升高會減小水的粘性力和表面張力,從而優化加濕效果。Based on orthogonal designed experiment, the synthesis of corundum - mullite - gahnite multiphase materials by two - step sintering process showed that the light fired temperature and holding time mostly influenced the apparent porosity of the multiphase materials. further study on the light firing time indicated that at the light firing temperature of 1300 and died fire temperature of 1600 for 3h, the optimal light fired time was about 1h
二次煅燒及正交實驗合成復相材料研究表明:輕燒溫度和輕燒時間對復相材料的顯氣孔率影響顯著;通過輕燒保溫時間的進一步研究表明:含剛玉、莫來石、鋅鋁尖晶石的復相材料,在輕燒溫度為1300 、終燒條件為1600下保溫3h時,最佳的保溫時間為1小時左右。Half an hour later, heyward stormed in, his face flushed.
半小時以後,海沃德氣沖沖地闖了進來,面孔漲得通紅。After the stolon had suffered from severing disturbance, clonal ramets could keep photosynthetic organ from being damaged through the plastic responses of the chlorophyll fluorescence traits, such as increasing nonphotochemical quenching of chlorophyll fluorescence ( npq ), decreasing actual photochemical efficiency of ps ii in the light ( f / fm " ) and photochemical electron transport rate ( etr ). moreover, the clonal ramets could also increase water use efficiency by means of decreasing stomatal conductance
在匍匐莖受到切斷干擾后,臭柏能通過提高非光化學猝滅( npq ) 、降低ps實際光化學量子產量( f fm 』 )和表觀光合電子傳遞速率( etr )等葉綠素熒光特性的可塑性反應來保護小枝光合機構不被破壞,並且可以降低氣孔導度以提高水分利用效率。Box type liquid - gas distributor is the patent product of our company, it not only realized the full connect of liquid but also avoid leak of it, the distributor can add the liquid distribute hole, it has small central line horizontal windage
該氣液分佈器不但實現了液體流動全連通,而且避免了液體泄露,液體分佈孔數量可以增加,分佈孔中心線水平度偏差小,具有更加優良的氣液分佈效果。Along with the winglet / chimneys seen in saturday ' s european update, these triangular air vents form another definitive part of ferrari ' s latest aero package
同周六歐洲站的技術分析中已經介紹過的小翼/風道一樣,這些三角形的通氣孔也構成了法拉利賽車最新空力學套件的另外一個部分。( 4 ) through the hydraulic property experiment of micro - hole lateral pipes of simple sdi in air, it was found that the average pressure of 60 mitre length lateral pipes was at the position of per 40o / o ~ ~ ~ 50 % of the effectual pipe length from the fist micro - hole, major pressure - loss was occurred at the ahead part of half pipe. the pressure uniformity reduced with orifice aperture ? increasing, and the relationship between pressure uniformity and initial water pressure was poor. running under the initial water pressure of 1. 5 meter, the discharge uniformity reduced with orifice aperture ? increasing, and when the orifice aperture smaller than or equal 1. 0mm, irrigation uniformity could achieve above 0. 6
( 3 )通過對空氣介質中簡易地下滴灌的微孔毛管試驗研究發現: 60m管長的毛管平均壓力水頭的位置基本上在距第一孔口的有效管長40 - 45的地方;大部分水頭損失發生在毛管的前半部分;壓力均勻度隨孔徑的增大而減小,但與初始工作水頭關系不密切;在1 . 5m以下的工作壓力下運行,沿程出流均勻度隨孔徑的增大而降低,當孔徑不大於1 . 0mm時,灌水均勻度可以達到60以上;當孔徑大於等於1 . 2mm時,灌水均勻度低於50 。Generally, the membrane thickness is much larger than the pore dimension. therefore, the resistance of the pore channel was the control resistance of the membrane diffusion process. while the existences of the stephen diffusion and pore interaction well explained the reason why the total membrane surface would be used as the interfacial area through where the mass transport took place
盡管由於膜的厚度比孔的尺寸要大很多, stephen擴散以及孔之間的相互作用對通過膜的總擴散阻力影響很小,但它們存在的結果是使整個膜表面的氣體濃度趨於一致。In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps
在第z三章中;通過對比,分析了電流密度、陽極化時間、溶液濃度以及自i然氧化時間對多孔硅光致發光光譜的影響,認為在一定的范圍內,多i孔硅的發光峰位會隨電流密度的增大而藍移,要獲得較強的發光,需z要選擇合適的電流密度;隨著腐蝕時間的延長,多孔硅的發光峰位會i發生藍移;當f酸的濃度較小q : 1 )時,峰位隨濃度的增大表現為向i低能移動;而當f酸的濃度較大河山時,峰位隨濃度的增大則表現z為移向高能;多孔硅在空氣中自然氧化;其發光峰位發生藍移,而強i度隨放置時間的延長而降低。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元,採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用,針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術,同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標,最後給出了一個整個傳送鏈路的功率預算。The porous ceramics is composed of lots of bridge arch - shaped microspores that connected and well - distributed inside the material. when the fluid passes through these pores, the suspended matters, colloid particles and big molecular organic substances are withheld or absorbed to the inner surface of the pore, and result in filtration, purification adn even - dispersion, high strength, good resistance to abrasion, high temperature and corrosion, no pollution, long workinglife, and easy to regenerate, the porous ceramics are available for filtration and fluidization of variou gas and liquid
微孔陶瓷過濾介質由許多大小分佈均勻,相互連通的橋拱狀開口氣孔組成.當流體從這些氣孔中通過時,流體中的懸浮物質,膠體顆粒,大分子有機物等被截留,吸附在微孔道內,從而達到了凈化和過濾均勻化的效果.微孔陶瓷強度高,耐磨損,耐高溫,耐腐蝕,無污染,氣孔分佈均勻,使用壽命長且再生簡便,特別適用於各種氣,液過濾和流態化過程As to the work about experiment study, at first, the paper makes certain the prominent affecting factors to the automating and humidifying property of this kind of nozzle by orthogonal experiment. by jicha analysis method and fangcha analysis method, the paper got that the nozzle aperture, the initial water temperature and the spraying pressure have prominent effect to the humidifying property while the effect of the original air state is small
試驗工作方面,首先通過正交試驗確定對撞針型高壓小孔徑離心式噴嘴霧化加濕性能影響顯著的因素,運用極差分析法和方差分析法,得到噴嘴孔徑、噴水初溫和噴水壓力對噴嘴的加濕性能影響顯著,而待加濕空氣初狀態的影響相對較小。Comparative studies on the physioecological traits of photosynthesis, transpiration and stomatal conductance in four congeneric species, mosla hangchowensis ( m. h ), mosla scabra ( m. s mosla chimnsis ( me ) and mosla dianthera ( m. d ) were investigated under controlled soil water status in this paper
本研究通過對控制土壤水分條件下杭州石薺? ( moslahangchowensis ) 、石薺? ( moslascabra ) 、華薺? ( moslachinesis )和小魚仙草( mosladianthera )四個同屬近緣物種的光合、蒸騰和氣孔等生理生態特性的研究,分析了它們對變化的環境產生的功能可塑性變化,解釋了在進化過程中這些近緣物種從瀕危到廣布的差異。This thesis work has researched the fabrication technics of photonic crystal defect waveguide with air - bridge structure and collecting waveguide ; suggested using uv - lithography and wet etching to fabricate traditional waveguide, after that, using eb - lithography and dry etching to fabricate photonic crystal holes, so can reduce the fabrication cost by a big range ; designed the moulding board, which can fabricate the air - bridge structure and is convenient for recognizing position in eb - lithography ; the structure consisted of traditional waveguides and etching grooves are fabricated on soi successfully, then an successful eb - lithography is realized on the structure, the defect waveguide collected with the traditional waveguide quite well ; used the etching grooves to do the sacrificial layer etching experiment, which grounded etching sacrificial layer by photonic crystal holes in next step
提出採用紫外光刻工藝製作傳統波導結構之後,通過電子束曝光和干法刻蝕製作光子晶體小孔的工藝方案,大幅度減低了製作成本;設計出可形成空氣橋結構、並且適用於電子束曝光位置識別的光刻模板,在soi材料上成功製作出帶有空氣橋刻蝕預留槽以及接續光波導的結構,在該結構上成功實現了光子晶體帶隙波導的電子束曝光,帶隙波導與接續光波導位置接續良好;最後利用預留槽進行了刻蝕犧牲層的實驗,為下一步利用光子晶體小孔刻蝕犧牲層形成空氣橋結構打下了基礎。The required porosities for various cases were obtained through varying the diameter of holes and spacing among the holes
各物理模型通過改變氣膜孔徑大小和孔間距得到不同的孔陣排列疏密度。This distributor use small space. has more distribute hole, little gas resistance, low pressure drop, wide operation flexibility
該氣液分佈器空間佔位更低,氣體通道開孔率更大,氣流阻力小,壓降低,操作彈性范圍大。Since the metal mould has many tiny small holes for steam to pass through in order to soften the crispy dry tea leaves before compression, there will be a lot of nails left behind after the strong compression
由於鐵模上面有許多小孔,用意是給蒸茶的蒸氣通過,好使乾脆的茶葉軟化,因此蒸壓之後就留有乳釘。分享友人