空氣摩擦 的英文怎麼說

中文拼音 [kōngqìmócā]
空氣摩擦 英文
windage空氣摩擦測力計 air friction dynamometer
  • 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...
  • 摩 : 摩構詞成分。
  • 擦 : 動詞1 （摩擦） rub 2 （用布、 手巾等摩擦使干凈; 揩拭; 抹） wipe; scrub; clean 3 （塗抹; 搽） spre...
  • 空氣 : 1 （大氣） air; atmosphere 2 （氣氛） atmosphere 3 （氣閘） air brake4 pneum ; pneumo ; pneumat ;...
  • 摩擦 : 1 （互相接觸的兩物體作來回相對運動） rub; chafe 2 [物理學] （相互接觸的兩物體在接觸面上發生阻礙相...
  1. Near the earth s surface, however, friction tends to cause the air to move slightly inward across the isobars

    接近地球表面，摩擦力使空氣稍微向內越過等壓線。
  2. Aerostatic bearings have been applied widely on the ultra - precision in the aviation, aerospace and the main axes and the slide of the precision measuring instrument and inertial measuring apparatus because of high rotation accuracy, calm operation, low friction and long life - span etc. they can also be used in fields range from both high and low temperature to both high and low velocity, sometime even to environment full of radioelement

    氣體靜壓軸承回轉精度高、運轉平穩、摩擦小、使用壽命長，可以在極高和極低的溫度、超低到超高的速度下，以及輻射環境中工作，因此在航空、航天領域以及精密測量和慣性測試設備上得到廣泛應用。
  3. The degrees of crystallinity of pure ptfe under the different conditions of water cooling, air cooling and furnace - varying cooling were made comparison by xrd. the thermal stability of pure ptfe and solid lubricant was analyzed by dsc - tg ; the composition and valence state of elements in the surface of carbon fiber, solid lubricant before and after friction test and lubricant transfer film were characterized by xps ; the frictional property of solid lubricant was tested by pin and disk test rig. the frictional wear property of solid lubricant between embedded bearing sleeve and steel axle friction pair ring was tested by special simulate test machine, the hardness of solid lubricant was tested by pm ; the compression strength of solid lubricant was tested by material test machine

    用sem表徵原料微觀結構、摩擦表面及潤滑轉移膜表面形貌：用xrd進行原料物相分析，及比較水冷卻、空氣冷卻、隨爐冷卻三種工藝條件下的純聚四氟乙烯樹脂的結晶度；用dsc - tg分析純聚四氟乙烯樹脂及固體潤滑劑的熱穩定性；用xps表徵碳纖維表面、固體潤滑劑摩擦前後表面、潤滑轉移膜表面的元素組成、價態變化；用銷盤式摩擦磨損試驗機對固體潤滑劑進行摩擦性能測試；採用專用的臺架模擬試驗機對固體潤滑劑鑲嵌軸承套與鋼軸摩擦副間的摩擦磨損性能進行測定；用萊次偏光顯微鏡（ pm ）測試固體潤滑劑的硬度；用材料試驗機測試固體潤滑劑的抗壓強度等。
  4. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  5. Acceleration, for instance, will be offset by air resistance and rolling friction, instead of a " max velocity. " robots crashing into the side of another robot will push it sideways, based on laws of friction and a semi - elastic collision

    例如，加速度將會被空氣阻力和滾動摩擦力抵消一部分，而不只受到「最大速率」的限制。根據摩擦力和半彈性碰撞原理，機器人撞到另一個機器人的一側時會把它推到一邊去。
  6. Air friction dynamometer

    空氣摩擦測力計
  7. The initial investigation indicates an air - conditioning unit crashed through the ceiling and sent air rushing in creating a ball of fire

    最初的調查證實是一個空調設備從天花板上墜落並且使空氣摩擦造成了一團火球。
  8. When a meteoroid with a speed of tens of kilometers per second hits the earth s atmosphere, the friction with air will heat up the meteoroid. the high temperature will cause the surrounding atmosphere to glow, creating a bright streak of light called a

    當流星體以每秒數十公里的速度進入地球大氣層，由於與空氣摩擦而產生高熱，高溫令流星體四周空氣發光，形成一條劃破天際的光跡，我們稱之為
  9. The air flow is slowed down by the friction with adjacent objects

    空氣流動的速度會因周圍物件摩擦而減慢。
  10. Near the earth s surface, however, friction tends to cause the air to move slightly outward across the isobars

    接近地球表面，摩擦力使空氣稍微向外越過等壓線。
  11. Frictional dissipation and cutting off the water supply in the boundary layer by downslope adiabstic warming air are main mechanisms of terrain affecting tc intensity

    而摩擦耗散作用和絕熱增溫的下坡干空氣對邊界層水汽的切斷作用則是引起熱帶氣旋減弱的主要機制。
  12. In this paper, the working fluid is air. experimental study of the nine different structure parameters of 3 - d ift with staggered arrangement fins in the reynolds number range of 250 to 30000 is performed to investigate the characteristics of heat transfer and flow friction behavior. analyses and reduces the experimental data by the least square method, obtains the nusselt and fanning friction fitting criterion equations

    本文以空氣為工質，在re 250 30000范圍內對九根具有不同肋形結構尺寸的肋叉排三維內肋管的換熱及流動特性進行了研究，並運用最小二乘法分析和處理實驗數據，獲得努謝爾特數，范寧摩擦系數與雷諾數，肋幾何參數的準則方程式。
  13. They enter our atmosphere traveling 45 miles a second and burn up in brilliant streaks of light

    這些碎片以每秒鐘45英里的速度穿過地球大氣層，與大氣層摩擦燃燒，在天空中留下一道道耀眼的光亮。
  14. Most particles are smaller than a grain of rice. they enter our atmosphere traveling 45 miles a second and burn up in brilliant streaks of light

    這些碎片以每秒鐘45英里的速度穿過地球大氣層，與大氣層摩擦燃燒，在天空中留下一道道耀眼的光亮。
  15. In distilled water and 1 mol / l hc1 friction coefficients of sic / sic were smaller than 0. 02, and 0. 1 in 1 mol / l naoh. in air at 50 % relative humidity firction coefficients of the five sliding pairs tested fluctuated between 0. 6 - 0. 8

    >鞏a12仇， ， ， 24zys >峨討， 2烏/ ， ， 24zy在相對濕度50 %的空氣中，經激光處理過的配對摩擦副的線磨損總量要比其它摩擦副的線磨損總量小幾個數量級。
  16. There float in the vast reaches of our solar system swarms of sand bits and dust clods known as meteoroids. when these " space debris " tear into the earth s atmosphere, air friction causes them to burn, forming momentary bright streaks that blaze across the sky

    太陽系內充滿著稱為流星體的塵埃和固體塊，當這些太空渣滓闖進地球的范圍時，便會和大氣摩擦而燃燒，成為我們日常所見的流星。
  17. What the students will actually show is the net ( resultant ) motion on the student, which is the unbalanced geometric sum of all of these forces

    如學生玩滑梯，同時存在向下的重力，滑梯產生的舉力（與表面垂直並向上）和阻止身體向前運動的摩擦力和空氣的阻力。
  18. Motor vehicles need energy to accelerate ( overcome inertia ), to push the air out of their way ( aerodynamic drag ), and to overcome the friction from tires, wheels and axles ( rolling resistance )

    帶發動機的車輛需要能量進行加速（克服慣性阻力） ，推開路上的空氣（空氣動力學拖曳力） ，並克服輪胎、車輪和車軸的摩擦力（滾動阻力） 。
  19. The theory is that paper craft, being much lighter than space shuttles, may escape the worst of the friction and heat that much heavier space shuttles face on re - entry to the atmosphere

    原理在於，紙質飛行器比太空梭輕很多，因此能很大程度上避免後者重返大氣層時的摩擦和高溫。
  20. In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described

    汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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