絕熱比 的英文怎麼說
中文拼音 [juérèbǐ]
絕熱比
英文
adiabatic relation-
3. a number of test parameters of insulation, position of reflux pipe inlet arrangemts, injection etc. are explored in the experiment. the experimental results demonstrate that the natural circulation is an efficient way to precool the pump system and maintain it at cryogenic temperatures
進行了多組對比實驗,著重對兩種不同迴流方式對于自然循環和預冷的影響進行了比較,並研究了系統增壓、引射、迴流管絕熱效果以及泵體絕熱效果對于自然循環的建立和維持以及對循環預冷效果的影響。Test method for mean specific heat of thermal insulation
熱絕緣材料的平均比熱的試驗方法Basing on the two order tangency at initial point between isotropic curve and hugoniot curve, a new method for calculating cold energy cold pressure and cohesive energy for solid is presented in the paper, comparison with experimental data manifest that this method is very good and can be applied
利用在初始點等熵線和沖擊絕熱線二級相切的性質,給出了一種可用於計算固體冷能冷壓和結合能的新方法,並推導了利用hugoniot參數計算結合能的公式。與實驗數據的比較表明,這種方法是有效可行的。Kapton is used extensively on spacecraft primarily as flexible substrates for lightweight, high - power solar arrays because of its inherent strength, temperature stability, excellent insulation properties, ultraviolet ( uv ) stability and infrared ( ir ) transparency. however, polymeric material undergoes severe degration after being exposured on atomic oxygen ( ao ) in low earth oribit ( leo )
聚合物kapton由於具有較高的比強度,優越的熱穩定性、絕緣性、紫外線輻射穩定性及紅外線穿透功能,是航天飛行器常用的材料,但由於空間環境中的原子氧對這種材料造成極大的損害,大大限制了這種材料在空間環境下服役時間。Their marriage may have fallen apart, but hollywood actor billy bob thorton has said that he still respects his ex wife angelina jolie, insisting that his new film school for scoundrels is not poking fun at her love for adoption
盡管好萊塢影星比利鮑伯桑頓和安吉利娜茱莉的婚姻已經結束,但是桑頓表示他仍然尊重前妻,且堅稱自己的新片噱頭學校絕無調侃茱莉熱衷收養孤兒的行為。Their marriage may have fallen apart, but hollywood actor billy bob thorton has said that he still respects his ex wife angelina jolie, insisting that his new film " school for scoundrels " is not poking fun at her love for adoption
盡管好萊塢影星比利鮑伯桑頓和安吉利娜茱莉的婚姻已經結束,但是桑頓表示他仍然尊重前妻,且堅稱自己的新片噱頭學校絕無調侃茱莉熱衷收養孤兒的行為。Their marriage may have fallen apart, but hollywood actor billy bob thorton has said that he still respects his ex wife angelina jolie, insisting that his new film ‘ school for scoundrels ‘ is not poking fun at her love for adoption
盡管好萊塢影星比利?鮑伯?桑頓和安吉利娜?茱莉的婚姻已經結束,但是桑頓表示他仍然尊重前妻,且堅稱自己的新片《噱頭學校》絕無調侃茱莉熱衷收養孤兒的行為。The problems of insulation resistance between the electrodes is too lower when the filament is on and the ability of bearing high voltage is too lower are rather outstanding and general during designing and manufacturing the tube with pyrolytic graphite grids in xuguang corporation. the technological experiments and the academic discussing which this article did to aim at these problems possess values of using for reference by other type tubes
其中,熱態時極間絕緣低和耐高壓能力差的問題是旭光公司在研製和生產熱解石墨柵極發射管中遇到的比較突出的共性問題,課題針對這些問題所做的工藝試驗和理論探討對其它管型具有借鑒和參考價值。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。By analyzing the characteristic of the flow field in overloading srm and comparing several existing experiment techniques, a convergence - fold tube facility was developed. the flow field in chamber of srm with high acceleration was simulated. some inhibitor ablation experiments were carried out in this test facility
通過分析過載條件下流場的特點,提出並比較了現有過載地面模擬試驗技術的優缺點,最終確定了收斂?折管的模擬試驗方法,模擬了高過載條件下發動機燃燒室內的高濃度粒子流,利用該方法開展了高過載模擬沖刷條件下的絕熱層燒蝕特性研究及絕熱層抗沖刷能力的篩選試驗。It wants to make sure that the tank modifications have ended the threat of large piece of hard insulating from falling off and threatening the shuttle ' s fragile heat shield, like the piece that punctured and doomed the shuttle colombia in 2003
這是為了確保油箱的改造終結了大塊脫落的絕熱板對飛船脆弱的絕熱層的威脅,就像那塊2003年刺破,並且毀滅了哥倫比亞號的碎片。The series of dm tundish coating is necessary materials for replecting insulating board and realizing hign - effcieney continuous casting, they have the properties of coating uncracking, resist corrosion, decomposing, etc. compared with insulating board, they are not only have the low cost of per ton steel materials but also reduce the impurity in liquid steel, increasee the purity and improve the perfoumnce of liquid steed
中間包塗料是替代絕熱板,實現高效連鑄的必用材料,具有易塗抹、不開裂、耐侵蝕、易解體等特點,與絕熱板相比不僅降低噸鋼耐材成本,而且減少鋼液中非金屬雜質,提高鋼液的純度,改善鋼的性能。In this paper, referring to qingju water power station, temperature control analysis and study has been done : study on the match ratio of the concrete and question of modifying of the special fine sand concrete to improve resisting ability of splitting of concrete ; study on the technology of the highly mixed fly ash to reduce the adiabatic temperature rise of concrete ; in case of the condition of resisting splitting to allow, study on the temperature control measure to strengthen and water the size of building, simplify the operational procedure, accelerate the construction speed, economize the expenses of the project
溫控問題成為青居水電站設計和施工的關鍵技術問題。 、本文對水工大體積混凝土溫控問題進行了分析和總結,結合青居水電站閘壩工程,開展溫度應力及溫度控制研究:研究混凝土的配合比及特細砂混凝土『改性問題,提高混凝土的抗裂能力;研究高摻粉煤灰技術,降低混凝土的絕熱溫升:在抗裂條件允許的情況下,研究施工過程中溫控措施的簡化,以加大澆築尺寸,簡化施工程序,加快施工進度,節約工程費用。Chart industries leads all other manufacturers in the number of cryogenic piping systems engineered, fabricated, and installed in the u. s. we combine real world experience with computer analysis to develop a system with the desired flow rate, pressure drop, phase quality, and the best balance between performance and economy
查特公司領導著全球其他製造商,從事真空絕熱管道的設計製造和安裝。我們結合實際經驗和先進的電腦技術進行系統設計,提供合理的流量壓降液相質量,及最佳的性能-成本比。Firstly, for jet array impingement cooling, the effects of the distance of adjacent holes, the impinging distance and jet reynolds number on heat transfer characteristic at the target wall are summarized under staggered holes arrangement and the same hole diameter. and then, the numerical simulation of inclined multi - hole film cooling has been studied. the influence factors examined in this case include blowing ratio and the distance of adjacent holes
首先通過對射流沖擊冷卻方式的研究,分析了相鄰孔間距、沖擊間距以及射流入口雷諾數對沖擊靶面換熱系數的影響情況,然後對多斜孔冷卻方式進行了數值模擬,重點探討了吹風比和相鄰孔間距對絕熱溫比與壁面換熱系數的影響規律,最後,針對沖擊-發散復合冷卻流場的計算物理模型,研究吹風比、相鄰孔間距的變化對沖擊-發散復合冷卻流動與傳熱特性的影響。The demonstration of heat - transfer measuring techniques and prospect of infrared thermal mapping techniques, main parts and performance indexes of a infrared camera, functional blocks and implementation of infrared processing software, experimental facility and measuring system of the wind tunnel has been made. the model emittance was experimentally determined and the three methods correcting directional emittance were compared. those problems of the infinite - slab model thickness and constant wall heat rates hypothesis, the determination of adiabatic wall temperature were discussed in a 1 - d heat conduction analysis
本文對紅外熱圖測熱技術與應用前景、紅外熱像儀主要部件與性能指標、紅外測熱數據處理軟體功能模塊與實現、風洞試驗設備與測量系統等進行了論述,測量了模型表面發射率並對發射率隨極角變化的三種修正方法進行了對比,對一維熱傳導分析中模型壁厚半無限假設、壁面熱流定常假設、絕熱壁溫選取等進行了探討。In comparison with climatic mean status, the vertical change of non - adiabatic heating is stronger in the north side of wpsh in june 1998, but weaker in the south side of wpsh
與氣候平均狀況相比, 1998年6月副高北側的非絕熱加熱垂直變化較常年偏強,而南側較常年偏弱。The wall is supposed insulate, indoor thermal mass is considered in the model. the control equation is very simple, but it is enough to study physical phenomena
該模型中假設圍護結構是絕熱的,只考慮了室內蓄熱材料的蓄熱作用,這樣得到的控制方程雖然比較簡單,但是對于研究簡單的物理現象已經足夠了。During the present research of the flow characteristics of refrigerant in adiabatic capillary tubes, a drift flux model of two - phase flow was established and the influence of metastable phenomenon was considered. the flow characteristics of refrigerant were analyzed with the program developed in this research. an experimental system for the adiabatic capillary tubes testing was set up. the results show that the theoretical model fits the experimental data well
在對絕熱毛細管內製冷劑的流動特性進行研究的過程中,運用兩相流漂移模型,並考慮製冷劑在實際流動中存在的亞穩態,開發了絕熱毛細管內製冷劑兩相流的數值計算程序,對毛細管內製冷劑的流動特性進行了分析;搭建了毛細管兩相流實驗裝置,並將計算結果與實驗數據進行比較,結果吻合的較好。However the study of metal - oxide hetero - interface is relatively less because the properties of metals and oxides usually differ extremely from each other. contrary to metals, the oxides are usually very brittle, elastically stiffer, insulating and exhibit less thermal expansion and their crystal lattice constants are different from metals. moreover, the preparation of specimen of metal - oxide interface is very difficult, the observation of searching a suitable interface under the electron microscope is also a tedious work
然而,對金屬-氧化物界面結構的研究卻相對少一些,這主要是由於金屬與氧化物之間的性質相差非常大,與金屬相反,氧化物通常很脆、絕熱、熱膨脹系數小,晶格常數也不同於金屬,有的甚至相差很大,而且,制備金屬-氧化物界面比較困難,在電子顯微鏡下全面地觀察一個合適的界面也是一項令人乏味的工作。分享友人