有效散熱面 的英文怎麼說
中文拼音 [yǒuxiàosǎnrèmiàn]
有效散熱面
英文
active cooling surface- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 有效 : effective; valid; efficacious
- 散熱 : heat radiation; radiating; thermolysis; abstract heat; heat dissipation; cooling散熱風門 throttle...
-
Through the research work of this article, it is shown that cfd technology can efficeintly instruct the design of indoor air distribution and evaluate indoor air quality and ventilating effect ; the distribution of heat sources have great impact on indoor air distribution ; under variable air volume condition, the indoor temperature and velocity fields are quite even and the thermo - environment is relatively good when using diffusers with coanda effect such as square diffuser and slot diffuser to supply air
經過本文研究發現,利用cfd技術可以有效地對空調室內氣流組織設計進行指導,全面對室內空氣品質和通風效果進行評價。熱源分佈對于空調室內的氣流組織具有極其重大的影響。在變風量條件下,利用具有良好貼附效應的送風口如方型散流器和條縫風口送風,空調室內的溫度場和速度場較均勻,室內的熱環境良好。The electron gun and coil inside the display will produce temperature, therefore are ventilate holes to dispel the heat on left and right sides and the above of the chassis. please try to prevent the dust from invading. too many dusts will cover electronic part and influence the heat dissipation, which will reduce the life - time of the spare parts
顯示器因電子槍及線圈連續運作而會產生溫度,所以在機殼的左右及上面都會有透氣孔散熱,應盡量避免灰塵侵入,因為過多的灰塵覆蓋在電子零件上,會影響散熱效果,降低零組件的壽命。At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency
在平面工藝初期,由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配, sio _ 2對其又有良好的掩蔽作用,早被選為npn硅平面器件的理想基區擴散源,但b在硅中的固溶度大( 1000時達到5 10 ~ ( 20 ) ,擴散系數小, b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈,導致器件不能滿足高反壓的要求,隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝,前者會引起較大的基區偏差,雜質在硅內存在突變區域,導致放大系數分散嚴重,下降時間t _ f值較高,熱穩定性差;後者需要難度較大的真空封管技術,工藝重復性差,報廢率高,在擴散質量、生產效率諸方面均不能令人滿意。Oblique spiral crowd the thick liquid machine is used for making concentrating and washing to various kinds to various kinds of paper pulps of papermaking trade of thick of thick liquid mainld. especially it is suitable for dehydration concentrate of wasted paper pulp. with pairs of spira crowd thick liquid machine machine in series, it can reach the needed of treatment density of the hot dispersing, achine. it have the advantage such as heavy productivty, dehydrate effectual, save floor space, convenient operate and maintain
斜螺旋擠漿機主要用於制漿造紙行業對各種紙漿的濃縮和洗滌,尤其適用於廢紙漿的脫水濃縮,與雙螺旋擠漿機串聯使用可以達到熱分散機所需的處理濃度,具有生產力大、脫水效果好,節省佔地面積,操作維修方便等優點。This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容: ?氯化聚乙烯( cpe ) /壓電陶瓷( pzt ) /氣相生長碳纖維( vgcf )復合材料; ? cpe /雙[ ( 2 -羥基- 3 -環己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf復合材料; ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料:利用壓電和導電填料填充高聚物基體,當復合材料受到機械振動時,通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上,利用壓電陶瓷的壓電效應,將機械能轉換成電能,則電流在導電粒子產生的迴路中流動,由於導電迴路具有一定的電阻,所以電能又轉變成熱能耗散掉,從而起到減振的目的。You should follow the installation instructions for the luminaires, such as installing away from combustible surface ( wall paper, wooden false ceiling ), allowing sufficient room for heat dissipation ( particularly luminaires fitted with tungsten halogen lamps ), ensuring effective earthing connection ( such as adding star and spring washers at the earth terminal ), and adopting proper anchorage to support its weight
燈飾應按照指示安裝,注意要遠離容易燃燒的表面(例如墻紙、木製假天花) ,預留足夠的散熱空間(尤其是裝有鎢絲鹵燈的燈飾) ,確保有效接地(例如在接地終端加上菊花介指和彈弓介指) ,並因應燈飾的重量,選用適當的安裝方法(例如大型的吊燈,須選用拉爆螺絲等) 。( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )
研究結果表明: ( 1 )超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐,在二維空間上呈軸對稱的雙峰分佈,負壓形成於這個倒渦流錐內; ( 2 )修正後的霧化氣體速度公式可以滿足超音速霧化的要求; ( 3 )影響超音速霧化工藝最根本的因素有氣液質量流率比( gmr )的大小、霧化氣體流量和倒渦流錐范圍,三個因素的值越大,對形成細粉越有利; ( 4 )在焊錫合金為zhl63a ,霧化介質微n _ 2 ,導液管突出高度取h = 6 . 0mm ,霧化氣體壓力取p = 1 . 0mpa ,合金過熱度取t = 167 ( t = 350 )時,所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。Based on the practical condition of the heating distribution network in beijing city, this paper systematically discusses the application of the neural network in the field of heating burden prediction and dispatching, include : based on city heating system, systematically analyzing the current condition of the heating system in our city and the development of the international heating technique, discussing the tendency in the field of the domestic heating system. at the same time, constructing a heating model characterized by distribution, ranking structure, intelligentized and favorable practicability and reliability, which adapts to the situation of our city and greatly enhances the level of automation and energy saving
本文從北京市供熱管網的實際出發,系統地討論了適合我市實情的神經網路技術在供熱管網預測和調度中的應用研究,主要進行了如下幾個方面的工作:以城市供熱系統為對象,綜合分析了我市集中供熱的現狀,結合當前國際供熱技術的發展,分析了我市集中供熱的發展趨勢,並提出了一種適合我市實情的供熱模型,該模型具有分散式、遞階結構、智能化以及良好的實用性和可靠性等特點,可極大提高集中供熱的自動化水平和節能效果。The ratio of isopropyl alcohol and pure water and temperature in the process of freezing are considerated in the research of the preparation of the pt / c electrocatalysts with freeze - drying method. the result shows, when we use 300ml pure water to wash the carbon ( 40mg ) in isopropyl alcohol ( 20ml ) to alter the ratio of isopropyl alcohol and pure water, we get the electrocatalysts with high catalytic activity ; the use of the liquid nitrogen ( - 196 ) to freeze the suspension ( carbon and precursor solution ) can make the pt / c electrocatalysts in high dispersion
採用300ml純水對20ml異丙醇中的40mg碳載體進行洗滌抽濾,來改變預凍液中的醇水比例,通過冷凍乾燥制備pt / c的性能較好;採用液氮對預凍液進行冷凍(預凍溫度為- 196 )制備的pt / c催化劑性能較好;冷凍乾燥法可以有效地避免加熱乾燥過程中前軀體離子在碳載體表面的脫附和團聚,進而制備載量大、分散性好、粒徑較小的pt / c催化劑。As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source
如果有供電系統不穩定、波動大,電源的諧波含量過高,紋波系數過大,乃至電源設備損壞、輸出異常等情況出現,將會嚴重影響視頻信號的圖像效果,大大降低防盜系統的穩定性和可靠性,我們採用快速傅利葉變換原理,即fft變換,通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft變換,從而得出信號中各次諧波的含量及信號畸變系數,並將其與正常工況下的參數進行對比,從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況;組成監控系統的設備長期處于工作狀態,往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高,從而影響設備的正常運行,降低設備的使用壽命。As far as the attic or basement with radiator, which effective legal document as property ownership certificate indicate use area, is charged according to its using area ; otherwise charged according to 50 % of using area of its ground
裝有散熱器並用熱的閣樓或地下室,其房產證等有效法律文書標明使用面積的,按其使用面積計費;未標明使用面積的或無房產證等有效法律文書的,按其地面使用面積50計費。In this paper, we resolve the question of high temperature when these high power transistor, and put forward that improving disseminate path and increasing interface area for disseminate will be achieved
文中有效解決了大功率晶體管的在工作時的發熱量較大的不利因素,提出改進散熱通道和加大散熱的接觸面積等可行的方法。The helmets are not weighty and have more useful protective area while providing excellent durability and integrity. the vents with inner air channels draw the air through the helmet and over the brow for maximum cooling
我公司生產的系列頭盔,獨具歐美風格,用材考究,重量輕,有效保護面積大,通風散熱性能好,佩戴安全舒適。After vaccum annealling in magnetic fileld, the films were studied by grazing incidence x - ray diffraction analysis and scan of x - ray diffraction. the results showed that fe atoms could be separated from cu matrix, which results in the increasing of the interface scattering, and enhance gmr effect
通過對真空磁場熱處理前後的薄膜的gixa分析及xrd掃描發現,真空磁場熱處理能夠使沉積態薄膜中的fe原子從cu的晶格中定向析出,這使得熱處理后薄膜內部的界面散射增多,能夠有效的提高薄膜的巨磁阻值。There are totally 200 heat sinking holes on the surface, which will help with heat sinking on the bottom and prolong the service life of computers
產品表面有200個散熱孔,有效幫助電腦底部散熱,延長電腦使用壽命。As a result, how resolve heat problem of electron component effectively is urgent affairs that society development have to face at present
因而如何有效解決電子器件的散熱問題,就成為現在社會發展所面臨的當務之急。Since the novel m41s mesoporous materials ( particularly mcm - 41 ) was firstly reported by mobil ' s researchers, much attention has been paid to this kind of materials. they have not only larger surface area, uniform pore structure and huge pore volume, which can reduce bottleneck phenomenon in molecular diffusion, but also higher mechanically and chemically stability as new inorganic materials. these materials have been widely used as catalysts, sorbents and separation materials as they were synthesized firstly
介孔材料作為一種新型功能材料,由於其具有較大的比表面積、長程有序的孔道結構、較大的孔容、良好的擴散性能和能夠減小分子擴散中的瓶頸效應等特點,以及作為無機材料所具有的機械和熱穩定性,所以自1992年mobil公司開發研製了以mcm - 41為代表的m41s系列介孔材料以來,被廣泛應用於催化、吸附和分離等領域。System structure : “ shuangdeng ” gfm vrla battery can be installed by cabinet, shelf, and ground arrangement, thermal dissipation space has been laid out to effectively avoid thermal runaway
系統結構: 「雙登」 gfm型閥控密封鉛酸蓄電池既可採用櫃、架安裝,也可地面排放,單體間預留了散熱空間,能夠有效防止電池熱失控。分享友人