空化機理 的英文怎麼說
中文拼音 [kōnghuàjīlǐ]
空化機理
英文
cavitation mechanism- 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...
- 機 : machineengine
- 理 : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
- 空化 : cavitation空化機理 cavitation mechanism; 空化噪聲 [聲學] cavitation [aeration] noise; 空化作用 [化學] cavitation
- 機理 : mechanisation; mechanization; mechanism
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In this section, applying the method, from abstract to specific and from history to present, it analyzes the operation mechanism of urbanization economy affected by market mechanism ; puts forward four theories of urbanization economy from economic perspective, including agriculture surplus and comparison advantage ; non - agricultural industry ; agglomeration economy and spillover effect, on this basis of the theories, it, on one hand, analyzes two kinds of internal mechanism in the chronologic operation of urbanization economies : increasing mechanism of urbanization economies in urban output industry ; and changing mechanism from specialization to integration, which are the representations of the evolution of " mart " development ; on the other hand, it analyzes two internal mechanism of dimensional operation of urbanization economy : internal spatial enlargement mechanism of urbanization economies from monocentric city to multi - center city, and external spatial enhancement mechanism which represents city - regionalization and city - chain connection, the later two mechanism represent the evolution of " polis " development
這一部分,按照由抽象到具體和由歷史到現代的研究方法,分析了市場機製作用下的城市化經濟運行機理,從經濟學角度提出了農業剩餘與比較優勢、非農產業、聚集經濟、外溢效應四大城市化經濟定理;在此基礎上,一方面分析了城市化經濟運行沿時間增長的兩個內在內容提要機制:城市輸出產業的城市化經濟增長機制和從專業化到綜合化的城市性質變遷機制,它們主要表現為「市」發展的延續;另一方面分析了城市化經濟運行沿空間增長的兩個內在機制:從單中心到多中心的城市化經濟運行的內部空間擴展機理和表現為城市區域化、城市連綿體的城市化經濟運行的外部空間擴展機理,它們主要表現為「城」發展的延續。The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed
文中利用齒墩設施實現附加射流,對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗,分析研究了中低佛勞德數條件下,齒墩墩頭的動水壓強及空化特性,齒墩設施與消力池聯合應用時的流態特性,消力池的水力計算,消能量的估算及其各種影響因素,消能機理和效果,消力池內的流速、壓強特性,摻氣濃度分佈等水力學問題,並提出了實現附加射流齒墩設施的水力設計方法和步驟。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。On the forming mechanism of industrial inanition in the old industry bases of west china
西部老工業基地產業空洞化的形成機理In view of henan province ’ s typifying for the five provinces in central china in regard to rural industrial development, this paper chiefly examines the enterprise networks in three clusters in henan province, that is, the steel office furniture cluster in pangcun town, yanshi city, the steel measuring tape cluster in nanzhuang village, yucheng county and the hair products cluster in xuchang county, xuchang city, by means of the social network analysis ( sna ), transaction - cost analysis ( tca ) and space - time coupling approach. it explores the forms, process, evolution and performance of the networks among enterprises and other actors in clusters in rural areas of central china
鑒于河南省鄉鎮企業發展在中部農區的代表性,本文運用社會網路分析法、交易成本分析法及時空耦合法,著重對河南省偃師市龐村鋼制傢具、虞城縣南莊村鋼捲尺和許昌縣發製品三個產業集群中的企業網路進行個案研究,從而探討中部農區產業集群中企業的結網形式和結網過程、企業網路的演化機理以及它是如何提高企業和區域競爭力的。Ultrasonic has being attracted much attention gradually in fuel atomization because of some specialities of cavitation and infection on liquid flow. in the course of atomization of pitchy oil, especially, does it show greatly its advantage, but its material atomizational mechanism need research ulteriorly. the primary content of this thesis is about adding cantilever reed to effervescent atomizer so as to combine ultrasonic and effervescent. this thesis has discussed ultrasonic some mechanism, ultrasonic dynamical procreator, effervescent and liquid mucosity infection on atomization, at the some time we make some experiments and discuss atomization rule following some machinery parameter and run parameter so as to find some rule about ultrasonic atomization and to rich the research of ultrasonic atomization mechanism. all that will be beneficial to the design about ultrasonic atomization atomizer
超聲波由於其空化機理及對液體的流變性影響等特性,在燃油霧化燃燒中逐步引起人們的重視,尤其在重渣油等高粘度液體的霧化過程中逐步顯示出其優越性,但其具體的霧化機理還需要做進一步的研究在氣泡霧化噴嘴基礎加入懸臂式簧片哨,將超聲波與氣泡霧化相結合是本文討論的主要內容本文從研究超聲波的一些機理入手,討論了超聲動力發生器氣泡霧化以及液體粘度對霧化質量的影響,並通過具體的實驗,根據實驗數據來討論霧化質量隨各種結構參數運行參數的變化規律,以便找到超聲霧化的一些規律,豐富對超聲霧化機理的研究,對超聲霧化噴嘴的設計具有一定的指導意義。Abstract : by analyzing the double meaning of the effect mechanism of water on the oxida tion and spontaneous combustion of residual coal in goaf, and through investigat ion of the results both in laboratory and field practice, it is confirmed that w ater pouring, which is suggested by authors, is a new, economic, efficient and e asy ? to ? operate measure for controlling the spontaneous combustion of the resid ua l coal in goaf
文摘:通過對水在采空區遺煤氧化及自燃的作用機理兩重性的分析以及實驗室試驗與現場應用實際效果研究,證實了筆者提出的清水灌注措施是一種新的、經濟有效的、操作簡便的防治采空區遺煤自燃的技術措施。This paper introduces the developing tendency of the space structure and the application of the pretensioned space lattice structure, summarize the analysis method and relation between lattice structure and pretensioned space lattice structure. dissertate the space pole - truss displacement method, tendon working principle, set forth the method of optimal design and whole process design. includes the use stage design and construction stage design of pretensioned space lattice structure
本文首先介紹了空間結構的發展趨勢及拉索預應力空間網格結構的應用情況,概述了網格結構與拉索預應力空間網格結構的分析方法及其相互關系,論述了空間桿系桁架位移法,拉索作用機理,闡述了拉索預應力空間網格結構的優化設計及全過程設計的設計方法,包括拉索預應力空間網格結構使用階段的設計和施工階段的設計。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。Studies on mechanism of biomass air gasification
生物質空氣氣化機理和燃氣品質影響因素研究Based on the pre - research of reservior - induced seimicity, the text analyzed water ' s load effect, interstitial water pressure and chemicophysical effect on rock in reservior - induced seimicity and discussed hydrogeological mechanism of reservior - induced seimicity. the analysis supplys reliance for the hydrogeological analysis of reservior - induced seimicity. dagangshan power station is located in the intersected segment of daduhe break - zone moxi break - zone and longmenshan break - zone. the construct - actibity seimic activity and hot - water activity is stong from cenozoic ear
本文在總結水庫誘發地震前人研究成果的基礎上,系統分析了庫水在水庫誘發地震中的荷載效應,空隙水壓力效應和對巖體的物理化學作用,從理論上討論了水庫誘發地震的水文地質機理,為水庫誘發地震的水文地質分析提供依據。Manager of chinavnet ye lisheng addressed at the party that the collaboration of chinavnet and tencent qq will enable the vast number of qq users to enjoy various qq vas including qq coin recharge via chinavnet, qq love, qq show and qq vips more conveniently on chinavnet s platform ; qq, on the other hand, will greatly satisfy the individualized demand of chinavnet users concerning im, online games, friend making and internet communities. at the earlier stage of this acitivity, chinavnet also provided qq service users through chinavnet platform with lottery opportunities on the spot. the prizes of the lottery including valentine s three - day shanghai tour and souvenirs etc. became an eye catcher at the party
晚會上互聯星空總經理葉利生表示,互聯星空與騰訊qq的攜手,可望讓廣大的qq用戶能夠通過互聯星空的服務平臺,更加便捷的享用豐富多彩的qq增值服務包括互聯星空q幣充值qq交友qq秀qq會員而qq的加盟,也會極大的滿足互聯星空用戶在即時通信游戲交友社區等方面的個性化需求同時,在前期活動期間通過互聯星空使用騰訊qq服務的消費者,互聯星空更是提供了現場的抽獎機會,包括上海情人節三日游及紀念品在內的各獎項,在晚會中成為了現場觀眾關注的熱點。Altogether the paper is divided into two parts including nine chapters. the first part is concerned with the spatial patterns and evolution mechanism of guizhou rock desertification ; the second part is about the contras tive analysis of the typical sample areas with rock desertification controlling
全文分兩個部分共九章,第一部分為貴州省石漠化空間格局與演化機制,第二部分為石漠化治理典型樣區對比分析。Secondly, introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology, and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character. thirdly, with the application of mode recognition method, completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology. fourthly, introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis, hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information
本文的研究工作主要包括以下五個部分:首先,介紹航空發動機常見的磨損故障類型,研究磨損故障的失效機理,分析磨粒的產生機理、分類以及形態特徵:其次,針對傳統鐵譜分析技術的缺點,引入圖像分析技術,再結合特徵參數優化篩選,形成基於圖像的磨粒顯微形態學特徵描述方法:然後,基於提取到的磨粒形態特徵信息,應用模式識別方法完成磨粒自動識別,並根據顆粒摩擦學的基本原理進行航空發動機磨損故障的診斷與定位:再后,鑒于單一方法不能提取足夠的故障徵兆信息進行磨損故障診斷,本文引入信息融合技術,開展航空發動機多故障徵兆信息綜合診斷方法的研究與探索;最後,基於航空發動機滑油光譜分析與鐵譜分析數據,應用時序模型、灰色模型以及組合模型進行磨損故障的預測方法研究。Hot waste gas from grate cooler is divided into four parts : part of it is sent to kiln as secondary air, part of it is sent to decomposition furnace as burning air by tertiary duct, and the rest is drained to the atmosphere after purified by electric dust collector at kiln head
出篦冷機高溫廢氣一部分作為窯用二次空氣入窯;一部分由三次風管送到分解爐作為燃燒空氣;剩餘廢氣經窯頭電收塵器凈化處理後排入大氣。Application of urban spatial information system dynamics evolvement mechanism
城市空間信息系統動力學演化機理與應用( 2 ) base on the analysis of the atomizing principles of spray nozzle, mathematical model of combined spin - flow pressure spray drying was set up and the essential parameters such as spraying pressure, liquid quantity, temperature, spraying angle, inject distance, particle diameter and distribution, hollow diameter for several materials in normal conditions by experiment and ldv
( 2 )對旋流式組合壓力噴嘴噴射霧化機理加以分析,建立了旋流式噴嘴霧化的數學模型,採用冷態試驗法並藉助激光霧滴測試等實驗裝置對噴嘴的霧化參數(如霧化壓力、噴液量、料液溫度、霧化角、霧距、霧滴直徑和分佈以及噴嘴的空芯半徑等)進行測量和計算。Carbon fiber reinforced silicon carbide composite ( c / sic ) is one of the most promising thermal - structure materials up to 1650 for aero engines. it is very significant to deeply understand the oxidation mechanisms and establish the oxidation kinetic models for the design and application of c / sic composites
C sic復合材料是一種有希望滿足航空發動機熱端部件1650工作溫度需要的結構材料,深入了解其氧化機理並建立氧化動力學模型對c sic復合材料的設計和應用具有重要的指導意義。The oxidation mechanisms of 3d c / sic composites in air, in water vapor and in oxygen / water vapor coupling environment have been clarified on the basis of oxidation behaviors and microstructure analysis of c / sic composites. the oxidation kinetics models of the composites in oxygen and in oxygen / water vapor have been established respectively based on the theories of chemical reaction kinetics and mass transport. the software platform of factorization for analysis of c / sic composites oxidation behaviors has been developed
本文以3dc sic復合材料氧化行為的實驗研究為基礎,結合復合材料的顯微結構分析,系統地闡明了復合材料在空氣、水蒸汽和氧水耦合環境中的氧化機理,並運用化學反應動力學和傳質學的基本理論,建立了復合材料在氧氣環境和氧水耦合環境中的氧化動力學模型。The oxidation mechanisms of 3d c / sic composites in air, in water vapor and in oxygen / water vapor coupling environment have been systemically analyzed based on the research of oxidation behaviors and microstructures of c / sic composites. 3
對c sic復合材料在空氣、水蒸汽和氧水耦合環境中的氧化行為進行了研究,並結合復合材料的顯微結構分析,系統地分析了復合材料在不同環境中的氧化機理。分享友人