空氣的特性 的英文怎麼說
中文拼音 [kōngqìdetèxìng]
空氣的特性
英文
properties of air- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 氣 : 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...
- 的 : 4次方是 The fourth power of 2 is direction
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 空氣 : 1 (大氣) air; atmosphere 2 (氣氛) atmosphere 3 (氣閘) air brake4 pneum ; pneumo ; pneumat ;...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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Some gas - sensitive test to deoxidizing gas have carried out based on tio _ 2 films by sputtering and doped some impurity. the experimental results showed that tio _ 2 films have different electron injecting principle and reactive mechanism, the behaviors of gas - sensor for hydrogen and ethanol manifest dissimilitude. this is due to that the oxygen vacancies were compensated by the impurity
用濺射制備的薄膜摻入部分雜質對還原性氣體進行氣敏測試,發現tio _ 2薄膜對酒精氣體和氫氣有不同的反應機制和電子注入機理,氣敏特性也表現出不同,而雜質的引入反而降低了tio _ 2薄膜的敏感性,可能是由於雜質對氧空位的補償所引起。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孔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孔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、水與空氣的熱濕交換。In the third, this paper makes a survey on components of the exhausted flue gas and waste heat resource, and discusses the possibility and methods of steam generation and air preheating with the waste heat. and then, the analysis on the advantages and disadvantages of heat recovery plants with conventional steel - water heat pipes and inorganic heat - transfer heat pipes is carried out. the paper also gives a valuation about the plan and features of the design of heat recovery
對余熱源排煙的成分和余熱資源量進行標定,討論余熱回收產生蒸汽或加熱燃燒用空氣的可行性和方法,分析常規余熱回收技術設計、採用普通鋼-水熱管和無機傳熱熱管等傳熱元件的設計余熱回收裝置的優缺點,並對余熱回收設計方案及其特點進行總體評價。The results show that the indoor air is unpolluted and the main contamination is particulates with diameter of 10 m or less, total volatile organic compounds and ozone ; the pollution mostly comes from personnel, merchandise and outdoor air ; the unacceptability ratio of the indoor air quality is 22. 64 %, so the indoor air is unacceptable ; indoor persons have caught sick building syndrome ( sbs ) ; long time and low concentration pollution is an important characteristic of indoor pollution ; and the satisfied degree of indoor persons on the temperature, relative humidify, illumination and vision is very high
結果表明,商場室內處于未污染狀況,主要污染物是可吸入顆粒物、總揮發性有機化合物和臭氧;主要污染來源於顧客、商品和室外空氣;商場內人員對室內空氣的不可接受率為22 . 64 % ,室內空氣屬于不可接受;室內人員已有病態建築綜合癥發生;長時間低濃度污染,是室內污染的重要特徵;室內人員對商場的溫度、相對濕度和室內光照度、視覺環境等滿意程度很高。Surface treatment ; determination of characteristics of air driven piston pumps
表面處理.第1部分:空氣傳動活塞泵的特性測定The performance of next generation maneuverable missile was predicted by taking into account its important parameters such as lift to drag ratio, empty weight to total weight ratio and effective load
在考慮導彈空重、有效載荷和氣動特性的情況下,預測了未來先進飛航導彈的性能。For the tectonic coal , the properties of higher porosity and lower permeability make it capable of keeping higher gas pressure ; both of the “ isolating action ” and “ gas - cushion action ” cut down the resistance against outburst ; the specifity of high - defomed - extent makes desorption , escape and flowing quickly become possible ; the existing of weak - seam or “ thoroughfare - seam ” create suitable conditions for the initial erupting and continued developing of coal and gas outburst. on the whole , it is the synhesis action of all factors , which leads to outbursts. the existing of tectonic coal with certain thickess is the essential condition of coal and gas outbursts , but not the sufficient condition
高空隙率、低透氣性使構造煤能夠保持較高的瓦斯壓力;破碎性、 「隔離」作用及「氣墊」作用,使構造煤抵禦外力作用的能力大大降低;構造煤變形幅度大的特性,為瓦斯的迅速解吸、放散和快速流動創造了條件;構造煤薄弱分層或「通道層」的存在,則為煤與瓦斯突出的初始激發和持續發展奠定了基礎;上述因素的共同作用,影響和制約了煤與瓦斯突出的強度和分佈.盡管如此,一定厚度的構造煤的存在只是發生煤與瓦斯突出的必要條件和有利條件,而非充分條件Aerospace - characteristics of aircraft electrical systems
航空航天.飛行器電氣系統的特性On asymmetry of ventilated supercavity of underwater vehicle
軸對稱航行體通氣超空泡的特性實驗研究The properties of the eas are hidden as the peak is sharp around zero
由於兩組探測器相隔太近,空氣簇射引發的峰值只出現于零附近,不利於分析宇宙射線的特性。Abstract : on the basis of the analysis about noise sources of the air compressor, it shows that air dynamic noise is primary one. according to the theory of fluid mechanics, the mathematics model of the air compreesor air dynamic noise is found, which shows the relationship between the sound power level and other parameters. the knowing noise of the air compressor " s air dynamic is of low frequencies. the reliable data is provided for the noise and vibration control
文摘:通過對空壓機噪聲源的分析,確認空壓機噪聲源中的空氣動力性噪聲為最強;由流體流場的聲學理論,建立空壓機動力性噪聲源的力學模型,它表明聲功率與其它參數的關系;並知空壓機的空氣動力性噪聲呈低頻特性,這為噪聲及振動控制提供了可靠的依據The paper gathered deep layers well logging materiak record well materiak core and cutting material of 27 wells in the daqing district, recognized the different type of igneous rock according to their log response feature, and made a large number of cross plot, then carefully chose several of them which works better igneous rock lithology recognition. made pattern recognition procedure using computer to recognize lithology, synthetical many logging parameter to identify igneous rock lithology. and then on the basis of recognizing lithology, the paper analyzed the lithofacies recognition law in this district
文中採集了大慶地區27口井的深層測井資料、錄井資料、巖心和巖屑資料,根據火成巖的測井響應特徵識別不同類型的火成巖,並做了大量交會圖,精選了幾種識別火成巖巖性效果較好的交匯圖版,編制計算機識別巖性的模式識別程序,綜合多個測井參數識別火成巖巖性,並在識別巖性的基礎上,進一步分析本地區巖相的識別規律,最後結合試油資料,分析本地區火成巖儲集空間的特點及油氣與火成巖巖性和巖相的關系。Railway transport equipment. characteristics of air receivers of pn 10 built prior to 68 - 01 - 01
鐵路運輸設備.於1968 - 01 - 01以前製造的pn10空氣儲蓄器的特性Turpa - a series of highly refined base oils which possess wccellent demulsibility, anti - foad and air release properties. containing antioxidant and anti - rust additives to impart high resistance to oxidation ant high temperature and to acid formation. turpa is specially recommended for steam, gas and water turbine, turpa fufills the most severe operating conditions imposed by modern heavy duty gas turbine as other general applications, such as vacuum pump, air compressor and hydraulic system, where the qualities of turbine oil are required
德霸-高度精煉礦物油,具備了優良的抗乳化性、抗泡性及空氣釋放性,配合抗氧化劑及防銹劑,在高溫時不易氧化及產生酸性,推薦應用於蒸汽、烯氣及水輪機,德霸能滿足新式燃氣渦輪機的嚴苛操作環境,也能應用於需要一般透平機油特性的操作,如真空泵、空氣壓縮機及液壓系統等。According to the features of air - conditioner in truck, four main factors have been confirmed in the text which will affect body " s heat comfort : temperature of blowing the face, temperature of blowing the feet, velocity of air flow, average temperature of radiation. the index of pmv - ppd has also been selected as the method of evaluation for the heat comfort
本文根據載貨汽車空調的特點,確定了影響人體熱舒適性的四個主要因素,即吹臉溫度、吹腳溫度、空氣流速、平均輻射溫度,並選定pmv - ppd指標作為熱舒適性的評價方法。The paper calculates and analyzes the influences of the initial pressure, the volume of the expansion chamber, and the throat diameter of the nozzle on the non - loaded performance of the circuit breaker, and presents the variation of the state parameters of the expansion volume and the flow field during interruption period, also predicts the nature of the self - extinguishing circuit breaker
本文分析計算了起始壓力、膨脹室體積及噴口喉部直徑的變化對斷路器空載特性的影響,給出了斷路器膨脹室狀態參數及滅弧室內氣流場在斷路器開斷過程中的變化,得到了自能式sf _ 6斷路器固有的特性。Concentric jacket pipe surrounded the test condenser. steam was generated in the boiler, flowed upward to the inlet of connection pipes, then flowed downward into the condenser tube, the cooling water flowed countercurrently through the annulus. the experiment covered the range of the pressure 1. 0 ~ 3. 0bar, heating power 2. 0 ~ 15. 0kw, steam mass flow rate 0. 001 ~ 0. 004kg / s, air mass flow rate 0. 0 ~ 0. 00163kg / s, and cooling water temperature 20 - 60 ?
在系統壓力為0 . 1 0 . 3mpa ,加熱功率為2 15kw ,蒸汽質量流量為0 . 001 0 . 004kg s ,空氣質量流量為0 . 0 0 . 00163kg s ,二次側冷卻水溫度20 60的范圍內,系統研究了豎直下降管內含有空氣的蒸汽冷凝特性,獲得了不同壓力、不同空氣含量和不同加熱功率下,冷凝段的溫度分佈和局部熱流密度的數據。The paper introduces the basic principle of the inducement type ventilation in the province of aerodynamics : disturbed characteristic of high - speed cascade can effectively leads quiescent air around it and drive air flow, compares and analyzes the traditional ventilation type and inducement ventilation type applied in underground garage in the facets of airflow organization, practicability and economy, coming to the conclusion that the inducement type ventilation is applied to the underground garage in the facets of economy, practicality and high efficiency
摘要介紹了誘導式通風利用空氣動力學中高速噴流的擾動特性,能夠有效地誘導周圍靜止的空氣,帶動空氣流通的基本工作原理,就傳統通風方式和誘導通風方式,在地下車庫應用中的氣流組織、實用性、經濟性等幾個方面做了比較,分析認為,誘導式通風因其經濟、適用、高效的特性適合在地下車庫應用。Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區The cavity depth between the rigid panel and absorption material is adjusted in order to make the surface characteristic impedance of the absorption material mathch the surface characteristic impedance of the air, so the absorption coefficient is the maximal
該系統由一層吸聲材料和可以移動的剛性板組成,調節剛性板與吸聲材料之間的空腔深度,使得吸聲材料的表面特性阻抗和空氣的特性阻抗相匹配,從而使吸聲系數達到最大。分享友人