配極四面體 的英文怎麼說

中文拼音 [pèijísìmiàntǐ]
配極四面體 英文
polar tetrahedron
  • 配 : Ⅰ動詞1 （兩性結合） join in marriage 2 （使動物交配） mate （animals） 3 （按適當的標準或比例加以...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 四 : Ⅰ數詞（三加一后所得） four Ⅱ名詞1 [音樂] （中國民族音樂音階上的一級） a note of the scale in gong...
  • 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...
  • 體 : 體構詞成分。
  1. Secondly, paper introduces the composition structure and the manufacture craft characteristic of airplanes, describes the structure and the main assembly process and the assembly characteristic of the n # fuel tank section, points out the assembly accuracy control of the n # fuel tank section. thirdly, paper analyses in detail problems which exist in the current riveted assembly of the n # fuel tank section, proposes the improve measures against the existent problems. finally, paper forecasts in theory the positive effect that the new plan will bring, introduces the practical result after approval test, analyses the differences of both

    具體做了以下幾方面工作:第一，詳細闡述了工作研究的基本原理;第二，介紹了飛機的組成結構、飛機製造工藝的特點、 n #油箱段的主要結構、 n #油箱段的主要裝配過程、 n #油箱段的裝配作業特點和n #油箱段的裝配準確度的控制方法;第三，具體分析了n #油箱段鉚接裝配生產線現行作業中存在的問題，針對存在的問題，提出了具體的改進建議，並形成了新的改進方案;第四，從理論上預測了新方案將會帶來的積極效果，介紹了新方案在現場試驗驗證的實際結果，並對兩者之間存在的差異進行了對比分析與研究。
  2. 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 。
  3. According to the definition and considering our country ' s special condition, the article points out that the key to realize the model of sustainable development is to build up a positive < wp = 8 > relationship between economy and population 、 resource and environment, so we take the model that remedy and develop at the same time when carrying out the strategy of sustainable development. according to this, in order to promote the sustainable development strategy, we should consummate our tax policies from four aspects as follow : firstly, set a just and effective tax system when distribute resources and regulate economy, by this way, we can promote the adjustment of industries, and improve the efficiency of resource arrangement ; secondly, set a relative tax system targets to promote the research of science and technology ; thirdly, design a series of tax policies targets to protect environment, and consummate our tax system in resource protecting ; lastly, consummate the related tax policies in improving citizen ' s comprehensive capability and social insurance

    鑒於此，我國的稅收政策也應從以下四個方面著手完善，以促進可持續發展：建立公平、有效的稅收分配和調控機制，促進產業結構調整，提高資源配置；建立以環境保護為目標的環境稅收政策，完善以資源保護為目標的資源稅收體系；完善稅收政策在促進人口素質提高及社會保障方面的措施。基於以上認識，本文進而對我國稅收政策在促進可持續發展戰略中的現狀作< wp = 6 >了分析，具體分析了我國稅收政策在促進科技進步，經濟結構調整，節約資源與保護環境等方面的作用與不足。我國現有的稅收政策在促進可持續發展戰略方面已發揮了巨大作用，對科技進步給予了越來越多的關注，對包括軟體行業在內的高新技術產業實施了各種稅收優惠措施；通過稅收政策有效調整了產業組織結構，促進了產業結構升級換代；通過各種稅費措施，對節約利用資源和保護環境都起到了積極的作用。
  4. It finds extensive applications in science research, engineering design, trail analysis on the criminal investigation spot, online detection automatically, quality control, machine vision, medicine diagnosis and etc. this thesis analyzes and summarizes the domestic and international researchers ’ work about stereo vision, and then concentrates on the research on some key techniques of stereo vision, such as camera calibration, corner detection, 3 - d matching and 3 - d reconstruction

    隨著科學技術和工業生產的發展，三維形面測量在現代工業及實際生產中起著越來越重要的作用，在科研、工程設計、刑事偵查現場痕跡分析、自動在線檢測、質量控制、機器視覺、醫學診斷等方面有著極其廣泛的應用前景。本文在分析和總結了當前國內外立體視覺研究工作的基礎上，針對其中的攝像機標定、角點檢測、立體匹配和三維重建四個關鍵技術部分開展研究，其主要成果如下: 1 .提出了一種改進的攝像機標定方法。
  5. In preparation for implementing the new 4 - year system, professor ng said the university has been actively planning the " software " ( curriculum structure ) and the " hardware " ( campus development ) associated with this initiative

    吳校長說，大學為配合四年制課程，已積極從軟體（課程結構）和硬體（校園擴建）兩方面著手籌備。
  6. In this paper, we study in the trends of chinese small - power moters with both technology and market issue which will be lift in 21 centry. four different and coequal areas are discussed in our article. focus on market to adjust the product sereies by developing the more special products in large scale ; take the chance of wto to enlarge the export of the products with high quality following the international standard ; promote the electricalization and professionalization of the small - power motor by means of employment of new technology ; establish an accomplished asisstance system in order to socialize the manufacture of small - power motors. last but not least, a few suggestions are advised for its work

    從以市場為導向，進一步調整產品結構，大力發展派生專用產品及其規模生產；以加入世貿組織為契機，積極採用國際標準，提高產品質量，擴大外貿出口；以技術創新為先導，積極採用高新技術，促進小功率電機向電子化方向發展和以專業化生產協作為基礎，健全完善配套體系，促進小功率電機社會化大生產發展等四個方面探討了21世紀我國小功率電機技術與市場的基本走向，並提出了工作建議。
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