gas cavity 中文意思是什麼

gas cavity 解釋
氣孔
  • gas : n （pl gases ）1 氣，氣體，氣態 〈cf fluid; solid〉 2 可燃氣，煤氣，沼氣；【礦物】瓦斯。3 【軍事...
  • cavity : n. 1. 【解剖學】穴，窩，盂，腔，空腔；【醫學】（空）洞。2. 【物理學】模槽；氣蝕區；空腔諧振器；【原子能】（反應堆中的）小室，暗盒。
  1. Abstract : from the point of theoretical analysis, this dissertation provides the coupling calculation on the hot gas temperature field and ablation in the cavity between stress release boot and insulation of solid motors. through the calculation, some law of the ablation of the stress release boot is found

    文摘:從理論分析的角度出發，通過對人工脫粘層和絕熱層所構成的槽縫燃氣溫度場與燒蝕的耦合計算，得出了人工脫粘層的燒蝕規律。
  2. Abstract : the distribution of cooling air which is in the grille - brick of the inner combustion hot air stove has been simulated with three dimension turbulent mathematical model so as to find a method which is used to improve the distribution of cooling air in hot air stove. the influence of differential horizontal plates on the distribution of cooling air is discussed. the results show that original big circle round field of flow in the pillar - cavity is changed into full one - way field of flow and edges gas flow, at the same time, is increased by horizontal plates. there is a different function with horizontal plates and vertical plates. to make the uniform distribution of cooling air in the hot air stove, it is necessary that horizontal plates and vertical plates are used in a combined way

    文摘:應用紊流三維數學模型模擬內燃式熱風爐內冷風在格子磚柱中的分佈，尋求改善其分佈的途徑.討論了加設不同布置的水平導流板對氣流分佈的影響.模擬結果表明，在支柱空腔內加設水平導流板改變了原有大迴旋流場，使迴旋流變成大面積的單向流.通過在支柱空腔內加設水平導流板可以發展邊緣氣流，這恰好與加設豎直導流板的作用相反，水平導流板和豎直導流板的結合使用有望實現冷風在格子磚柱中的均勻分佈
  3. The effects of reynolds number, back surface of nozzle, aft - dome configuration and degree of submergence on aft - end internal flow were studied by both cold gas simulation and numerical simulation. it is showed that the separated flow is sensitive to the change of reynolds number and aft - end cavity configuration

    最後，利用冷流模擬與數值模擬相結合的方法，研究了雷諾數、噴管背壁形狀、后封頭形狀和潛入深度對燃燒室尾部流場的影響，結果表明流動的分離對雷諾數和背壁區幾何邊界的變化很敏感。
  4. After igniting the motor, the combustion gas coming into the debond cavity may expand the debond cavity, and make an additional combustion area and lead to larger load

    發動機點火后燃氣進入脫粘腔，使脫粘腔變形並獲得額外的燃燒面積，從而導致更強的載荷。
  5. And the relationship between the size of a cavity and the velocity of cross - flow gas was investigated

    當錯流氣速或壓力梯度足夠大時移動床內將發生空腔，空腔大小隨錯流氣速的增大而增大。
  6. External defects : undercut, overip, arc pit, gas cavity in surface, crack in surface

    外部缺陷：咬邊、焊瘤、弧坑、表面氣孔、表面裂紋。
  7. However, many of those studies focused on the structures of bearing itself. and few studies have been done on the gas cavity caused by the decrease of oil - pressure in the oiling system, which influences bearing

    但是大多數研究都集中在軸承結構本身，對供油系統中由於供油壓力變化而造成油腔中出現氣穴現象對軸承特性影響的研究較少。
  8. This paper studies the diffuser ' s influence on the fadw ' s running properties experimentally including the inner wall and outer wall of diffuser and the backpressure of the diffuser. to prevent the gas of fadw from leaking into the laser cavity because of the effect of layer and turbulence the leak - proof flakes are designed. first the method of the leak - proof flake design is studied and then its influence on the properties of fadw is studied experimentally

    實驗研究了擴壓器對fadw工作性能的影響，提出了擴壓器結構和超音速噴管相對布局參考數據；研究了氣動窗口側壁防漏片的結構對氣動窗口性能的影響，並給出其工程設計方法；同時還研究了擴壓器不同的背壓對整個fadw作性能的影響，據此提出了擴壓器與引射器結合的設計方案，從而為大壓比、高性能的fadw的設計提供了進一步設計參考方法。
  9. Pain on ascent may also result from the expansion of gas under a new filling, or from a dental cavity or abscess

    這是由於航機能使補牙蛀牙或牙瘡內的空氣膨脹而引致不適。
  10. Selective absorption of electromagnetic wave. adw employing gases which do n ' t absorb the laser energy can form a gas urtain " whose pressure of the two sides is equal to the low pressure of laser cavity and the ambient circumstance pressure respectively so it can isolate the higher pressure ambient air from entrancing into the laser cavity and maintain the hel ' s running normally

    氣動窗口利用對激光器輸出波長沒有任何吸收作用的特殊氣體作為窗口工作介質，並根據氣體動力學部分相關原理，能生成一個具有與激光腔低壓和環境大氣高壓相匹配的壓力梯度、並把激光器低壓工作介質和外界大氣相隔離的「氣幕」 ，從而保證高能激光器的正常工作。
  11. The gas sources that we used are trimethylgallium ( tmg ) and 99. 9999 % purity nitrogen, which were fed into reaction chamber and resonance cavity respectively. the highly dense ecr plasma up to 1011cm - 3 was created in the resonance cavity and introduced to the next reaction chamber by the force of divergent magnetic field. consequently, gan thin film was grew on the substrate sapphire ( 0001 ) placed in the downstream

    實驗採用有機金屬三甲基鎵氣源（ tmg ）和99 . 9999純度的氮氣，在ecr - pecvd150裝置共振腔內電子迴旋共振吸收微波能量產生的高密度ecr等離子體在磁場梯度和等離子體密度梯度的作用下向下級反應室擴散，在放置於下游區樣品臺上的- al _ 2o _ 3襯底表面附近發生物理化學反應沉積成gan薄膜。
  12. With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization

    採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數，首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬，分別分析了tm _ （ 011 ）和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響；應用於小型化mpt時，指出了小型化設計參數的合理選取，即：小型化后的mpt ，喉徑小、工質流量小，消耗的微波功率也小。
  13. By ensuring that all inner surfaces of the valve are kept constantly wetted and vented to the upstream side when the valve is in the closed position, we have eliminated the conditions required for gas accumulation and caustic crystallization in the body cavity

    為了確保所有閥門的內部表面能夠經常保持濕潤狀態，並在閥門關閉期間能將次氯酸鈉排出到上游位置，我們已經消除了閥腔內氣體積累和結晶體產生的必要條件。
  14. Results indicate that the characteristics of cavity flowfield were altered similarly by gas and liquid injection. the local boundary layer or shear layer are modified by injection on upstream / bottom wall of cavity, and the cavity shear layer immediately becomes angled with respect to the main flow direction. the injection on fore wall of cavity has little effect on the characteristics of cavity flowfield

    結果表明:氣體/液體噴流對凹腔整體流動特徵的影響是一致的，凹腔上游/底壁噴流破壞了當地附面層或剪切層，導致凹腔剪切層偏向主流方向;凹腔前壁噴注對凹腔流場特徵基本無影響。
  15. The gas hole, shrinkage cavity and crack were eliminated through up - grading technology

    並且改進工藝，以消除氣孔、收縮和裂紋。
  16. At the preliminary stage of burning the gas flows along the back surface of the submerged nozzle and no recirculation forms in the aft - end cavity. at the medium stage of burning a weak recirculation forms in the rear of aft - end cavity by the force of injection flow. at the end stage of burning the flow separates at the c ombustion channel and a strong vortex forms in the aft - end cavity

    實驗結果表明，在發動機工作過程中隨著燃面的退移，燃燒室尾部的流動會發生很大變化，初始時刻背壁區加質流沿噴管背壁進入噴管，背壁區沒有迴流形成；中間時刻在加質流的驅動下背壁區後部形成較弱的迴流；結束時刻氣流在燃燒室壁面分離，背壁區形成強烈的迴流。
  17. My paper attempts to attain some conclusions from this study of gas cavity, and these conclusions may be useful to controlling bearing operation. the oiling system is an important part of radial - thrust floating - ring hybrid bearing. there are some factors that lead to the variation of oil - pressure in the oiling system

    本論文試圖從理論方面研究由於供油壓力變化導致氣穴現象（這時候呈現兩相流潤滑）對徑?推聯合浮環動靜壓軸承動靜態特性的影響，為以後可能尋求主動控製作了準備。
  18. 2. firstly, to make new hypothesis hi the case of gas cavity existing hi oil recesses

    2初步分析了氣穴現象出現的可能性、原因、研究的意義。
  19. According to the papers by an qi or shen xin - min, we know that gas cavity in the oil recess can influence the static characteristics of bearings

    沈心敏、安琦等在研究中分別指出氣穴對軸承特性有影響。
  20. Secondly, to research the phenomena of gas cavity in the oil recess, which was caused by the low oil pressure and to analyze its influence on the dynamic and the static characteristics of bearing

    進而分析由於供油壓力變化導致氣穴現象發生時，對軸承動靜態性能的影響。另外對紊流工況下兩相流潤滑對軸承動靜態特性的影響作了初步探討。
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