空隙率 的英文怎麼說
中文拼音 [kōngxìlǜ]
空隙率
英文
percentage of void-
Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance
通過試驗研究認為：玻璃纖維瀝青碎石的技術性能不如瀝青碎石好，但路用彈性性能較好，如能解決拌和工藝問題，調整纖維絲的品種，增大其直徑，其路用性能仍值得探討，瀝青橡膠碎石結構層具有變形性能和抗裂性能良好，空隙率小，防水性能好，熱穩定性較好，施工工藝簡單的特點，因此，瀝青橡膠碎石是二級及二級以下公路因疲勞而開裂的瀝青路面的良好罩面材料，也是防止半剛性基層收縮裂縫反射的良好結構措施，在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層，雖然造價比夾鋪土工布高，但其施工工藝，抗裂性能和防水性能均優于土工布，不僅可以大大減少半剛性基層材料的反射裂縫，延長路面使用壽命，而且可能適當減薄瀝青混合料面層的厚度，雖然初期造價有所增加，從長遠來看，具有十分重要的技術和經濟意義。Based on laboratory and in - situ tests, the influence of initial void on the rutting - resistance, moisture damage - resistance, strength and permeability of asphalt mixt is studied, and the appropriate ranges of air void of asphalt mixtures are analyzed and suggested
摘要在室內試驗和現場測試的基礎上，分析初始空隙率大小對瀝青混合料抗車轍能力、水穩定性、強度和滲透性能的影響，探討瀝青混合料空隙率的界限值。Photomicrograph representing of varying pore size of 200 - 250 u m, revealing a highly porous structure with largely open and interconnected pore
05 ） 。高空隙率支架在體外降解過程中表現出較好的穩定性。Calculated the open pore rate, porosity and average leaching time. photomicrograph of representative porous microstructure of matrix were taken by scanning electron microscope ( sem )
計算平均開孔率、空隙率、氯化鈉瀝清時間，並進行支架表面與內部孔徑和空隙開放情況的掃描電鏡觀察。Inorganic anti - cracking reinforced chemical additive, called wj, generates some tittle expansive crystals in hydration process in concrete to reduce the porosity and improve the distribution of pore size. the expansive power is process in common to tumefaction that petty crystalloid aft suck water and pressure to concrete pores that aft crystal gather volume. its adding weight was 8 % - - 12 % in cement, its restrained expansive ratio was about 0. 02 % - - 0. 06 %, and relevantil brought self - stress 0. 2mpa ?. 6mpa
無機增強抗裂材料wj摻入普通混凝土中，在水化硬化過程中生成一定量的微膨脹結晶體，降低空隙率，改善混凝土中孔結構分佈。其膨脹驅動力是凝膠尺寸的晶體鈣礬石吸水腫脹和結晶狀鈣礬石對孔隙產生膨脹壓的共同作用。當wj摻量為8一12兒在鋼筋和鄰位的限制下，使混凝土產生0Two group scaffolds modified with alginate calcium containing bmp or vegf respectively were incubated in liquid in triplicate at 37 c. at set times, samples of media were collected, and the remove volume was replaced with fresh media
採用支架內部結合的藻酸鈣凝膠作為細胞因子控制釋放系統。將分別結合有bmp和vegf不同空隙率支架，一式三份在37液體中孵浴。Therefore, the purpose of this thesis is to look for a suitable preparing process for 3 - tcp with their micro - construction controlled more easily and the porosity rate and strength uniform. this paper created a new preparing method of porous ceramics, i. e. foam gel - casting technique, which integrated foam technique in porous ceramics preparing and gel - casting technique in structural ceramics preparing was applied to improve the preparing technique of porous p - tcp bioceramics in order to prepare ceramics bodies with high body intensity, controllable porosity and easily machining performance
因此，本論文努力尋求一種適合於- tcp多孔陶瓷的制備工藝，使其微觀結構易於調節控制，空隙率和強度達到平衡同一。在實驗中，結合了制備多孔陶瓷常用的發泡法和結構陶瓷制備中的注凝法，創新設計了一種新的多孔陶瓷成型方法? ?泡沫注凝法，對多孔- tcp生物陶瓷的成型工藝加以改進，制備出高強度、氣孔率可控以及易加工的陶瓷坯體。It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency
對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。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Experimental results show that the total measurement time is less than 0. 1 second and the maximum error of voidage measurement is less than 6 %
實驗結果表明摘要一在0 100測量范圍內空隙率測量最大誤差可小於6 ，得到一個空隙率測量值演算法耗時小於0j秒。This thesis for the first time bases its analysis on the maintenance characteristics and repair mechanisms for crack filling and pothole repair in asphalt roads. it analyzes the properties of the aggregate and the bituminous binder in patching materials, and further analyzes the compatibilities of the aggregate and the bituminous binder, patching materials and old pavement materials. furthermore, it determines the grading types, the mineral aggregate gradations, the application rate of asphalt, the principle of selecting component materials and the air void
本文首次依據瀝青路面裂縫填封和坑槽修補的維修特性和修補機理，全面分析了修補材料中集料與瀝青結合料應具備的性能要求，並對集料與瀝青結合料、修補材料與原有路面材料的相容性進行了深入的分析，同時分析確定了修補材料的級配類型、礦料級配、瀝青用量范圍、組成材料的選用原則及空隙率等。In order to improve the pavement performance of lime - fly ash stabilized aggregates and make coarse aggregates form skeleton, the paper confirm the rate of voids of the mixed aggregates by the method of vibrating test
為了改善二灰碎石基層的路用性能，使粗集料（ 31 . 5mm 4 . 75mm ）能夠形成骨架結構，本課題通過振實試驗方法研究了不同粒徑粗集料混合后的空隙率。( 4 ) when the gas cloud radius and the barrier interspaced ratio are given, the explosion overpressure increases with the growing of barrier number
氣雲半徑和障礙物空隙率不變時，隨著障礙物數量增大，爆炸超壓逐漸增大；障礙物數量相同時，障礙物半徑越大，爆炸超壓越大。The research results show that aggregate gradation and the nominal maximum aggregate size evidently influence the shear resistance of asphalt mixture ; aggregate flakiness content influences the shear resistance of asphalt mixture, and with the increase of aggregate flakiness content the shear resistance of asphalt mixture decreases ; asphalt binder properties, especially penetration, softening point and viscosity influence the shear resistance of asphalt mixture, and the latter increases with the decrease of penetration and the increase of softening point and viscosity ; asphalt content influences shear resistance of asphalt mixture, and with the increase of binder / aggregate ratio the shear resistance of asphalt mixture decreases ; air void influences shear resistance of asphalt mixture, and usually with the increase of air void the shear resistance of asphalt mixture decreases ; homogeneity does not have a direct and obvious relationship with absolute value of shear resistance of asphalt mixture, but does with variation of shear resistance of asphalt mixture
研究結果表明：集料級配和公稱最大集料粒徑對瀝青混合料抗剪強度有顯著的影響；瀝青混合料抗剪強度受其集料中針片狀含量的影響較大，集料中針片狀含量增大，瀝青混合料抗剪強度減小；結合料的性質，特別是針入度、軟化點和粘度對瀝青混合料抗剪強度有較大的影響，隨著針入度減小，軟化點和粘度增大，瀝青混合料抗剪強度增大；含油量對瀝青混合料抗剪強度有較大影響，隨著油石比的增大，瀝青混合料抗剪強度減小；瀝青混合料抗剪強度受其空隙率的影響較大，一般隨著空隙率的增大，其抗剪強度減小；瀝青混合料均勻性與瀝青混合料抗剪強度絕對數值間沒有明顯的關聯，而與數值間的變異性有著很好的相關性。Carbon fibre laminates - determination of the fibre, resin and void contents
碳纖維層壓板材.纖維樹脂含量和空隙率的測定( 3 ) based on ect sensor and pattern recognition theory, a new method was proposed for voidage measurement of gas - liquid two - phase flow. one of three template databases was selected by flow regime classification. the voidage was obtained by template matching with euclid distance measure
（ 3 ）基於ect傳感器，結合模式識別理論，提出了一種新型的氣液兩相流空隙率測量方法，利用歐氏距離測度對一組測量值進行模板匹配，從而得到該組測量值所對應的空隙率值。Moisture, the voids and the density of the pavement are expected for many operators in the road department. in order to promote the application of gpr to detect pavement quality as quickly as possible, in this paper some research works were zone. the mainly research results includes the following aspects : ( 1 ) since the dielectric constants of pavement medium have important influence on radar detection results, dielectric properties of pavement layers materials are analyzed for the design of practical gpr system and field application
目前探地雷達在公路上的應用還主要局限於路面結構層厚度的檢測，對路基路面物理力學指標的無損檢測被廣大公路工作者寄予厚望，這一技術的應用還有很多的工作要做，為了使其早日應用於實際，實現探地雷達對路面含水量、空隙率和壓實度的快速無損檢測，本文具體做了以下的一些工作： （ 1 ）鑒于介電常數對探地雷達檢測的重要影響，對路面結構材料的介電特性進行深入分析，為路用探地雷達的實際應用測量提供理論依據。4. foams immersed in ethanol for 2. 5 and 17. 5 hours, mass loss happened but notable in the one with lower porosity. volume shrink happened from 7. 5th hour and decreased to 70 - 75 % at 25th hour respectively and significantly ( p < 0. 05 )
持續酒精消毒5小時之後支架體積逐漸縮減，至第25小時體積縮減為原來的70 75 ，具有統計學意義；其中高空隙率支架體積變化更明顯（ p 0Owing to its thin wallow resistance, high void and capacity, metallic packings have a high separation efficiency, and applied to handle the thermal sensitive, hard to sepoaration and easy carbonized materials in the vacuum rectify9ing tower
金屬填料材質主要包括碳、鋼、鋁合金及不銹鋼等.由於其壁、空隙率大、通量大、阻力小、分離效果好.特別適用於真空精餾塔，處理熱敏性，易分解、易結碳的物料Porous anodic alumina formed by electrochemical oxidation has a fine structure with a nanohole array. the size and density of the pore, and the porosity can be tailored by the anodizing conditions
用電化學方法制備的多孔陽極氧化鋁（多孔鋁）具有規則的納米多孔陣列結構，通過改變陽極氧化條件，可以控制孔徑尺寸、密度和空隙率。分享友人