無外力作用場 的英文怎麼說

中文拼音 [wúwàilìzuòyòngchǎng]
無外力作用場 英文
force-free field
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 外 : Ⅰ名詞1 （外面） outside; external side 2 （外國） foreign country 3 （以外） besides; beyond; in ...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 場 : 場Ⅰ名詞1 （平坦的空地 多用來翻曬糧食 碾軋穀物） a level open space; threshing ground 2 [方言] （...
  1. Traditional sports and folk sports are of great variety, which may be used as pe resources. but such contents are absent in the pe textbooks. so it is natural that the pe classes can not arouse interest of students ; the number of the playground and sports apparatus can not meet the standard. neither can they satisfy the demand of students ; it ' s practical to take advantage of the local geographical resources in pe curriculum ; extracurriculum and after - school activities can not meet the demand of students, which should be developed and utilized to a greater extent ; the structure of pe teachers is far from satisfactory

    結果顯示，甘肅少數民族地區小學體育課程資源存在著課程內容中民族傳統體育和民間體育活動項目豐富，然而教材內容沒有考慮地方和實際情況，很難引起學生的興趣；各級各類學校體育場地、器材的要求相差甚遠，現有體育場地器材都無法滿足教學要求和學生的體育需求；自然地理財富作為一種體育課程資源來開發很具有價值和實際意義；課外體育活動和校外體育活動還不能滿足學生的需求，尚須大力開發和利用；體育師資結構不合理，學歷結構偏低，且相當一部分是民辦教師轉正等問題。
  2. In addition, the characteristics of er fluids such as short response time, low power consumption, smoothness of operation and mechanical simplicity, er fluids have been considered for various applications in mechanical engineering for electromechanical couplingdevices such as an engine mount, shock absorber, clutch, er valve, robotics arm and several control system during the past decades, studies on er fluid materials were focused on those of inorganic oxides and organic polymers

    電流變液作為一種新型智能材料，其力學、電學、光學性能可由外加電場連續調控，這一特性使得電流變液在液壓系統、減振裝置、印刷、光學以及機電一體化等領域具有廣闊的應用前景，成為仿生智能科學的首選材料之一。在過去的幾十年間，電流變液材料的制備主要集中在無機氧化物和有機聚合物。
  3. Make a brand with character, " when beautiful nimble " card report motor - car has the outward appearance novel and pure and fresh, the operation is handy, on the safe side, ride travel is comfortable, noise is low, service life is long, cost can be low, free from contamination, intelligent control, driving moment is big, climbing capacity is strong, glide performance is good, protective function is much, the characteristic such as function stability, once put in the market times accept consumer favour, make strong brand quickly

    以品質打造品牌， 「佳捷時」牌電動車具有外觀新穎清新，操作簡便，安全可靠，騎行舒適，噪音低，使用壽命長，耗能低，無污染，智能控制，驅動力矩大，爬坡能力強，滑行性能好，保護功能多，性能穩定等特點，一經投放市場就倍受消費者青睞，迅速成為強勢品牌。
  4. As novel concept actuators, ultrasonic motors have been attracting intensive attention at home and abroad with their outstanding features such as low speed and high torque, large holding torque, rapid response, light weight and compact sizes, simple structure, and no magnetic disturbance, etc, and which have been applied to many fields

    超聲波電機作為一種全新的驅動器，以低速大轉矩、大靜態保持力矩、響應速度快、體積重量小、結構簡單以及無磁場干擾等優點受到國內外的廣泛關注，並在眾多領域得到了應用。其中駐波超聲波電機具有驅動和控制電路簡單，轉速平穩，波動較小等突出優點。
  5. In these matters, private and non - statal institutions and organizations obviously also play roles, whether were speaking of market stabilization trade associations, co - operatives, risk reduction futures markets, formal or informal crop - insurance schemes, or human capital development private schools, ngos, and international donors and foreign aid

    在這些事務上，民間和非國家的機構和組織顯然也起著重要的作用無論是有關於市場穩定（如貿易協會與合作社） 、降低風險（期貨市場、以及正式或非正式的農作物保險項目） 、還是人力資本開發（私立學校、非政府性組織、國際捐助、外援） 。
  6. Organic - inorganic nanocomposite, which are the complex of inorganic nanopraticles with organic compound, is a popular study subject in nanoscale composite. the nanocomposite can not only take advantage of several advantage, but also produce new properties. in this thesis, taking account of the problems in electrorheological fluids such as high leakage current, low yield stress and stability, the pan - batio3 nanocomposite with different structure are prepared by in - situ complex technology and modified sol - gel method

    根據目前電流變液中出現的問題（如屈服應力不夠高，漏電流密度不夠低，穩定性不夠好等問題） ，基於聚苯胺有較高的熱穩定性，且密度又小，特別是聚苯胺的介電常數和電導率均可按需調整，此外，鈦酸鋇無機納米粒子作為一種無機鐵電體，在電場作用下具有自發極化的能力，一方面可以為體系提供高的介電常數，另一方面又可保證體系的絕緣性能。
  7. There is no thoroughly rounded theory about displacement ventilation system in our country at present and our research begins recently. the study work of this paper will be useful for further optimization design of displacement ventilation system. this dissertation includes five parts. the first part introduces the development of the displacement ventilation and the background of research in domestic and oversea. in the second part, it gives working principle of displacement ventilation system and it ’ s advantages to the mixture ventilation. the study also gives a series of indexes to evaluate displacement ventilation system and specifies air supply terminal device and so on. it is needed to simulate and analyse the velocity field, temperature field and distribution of flow field. this is the third part. the forth part specifies the simulative method for thermal stratification of displacement ventilation system. it gives some factors affecting thermal stratification height such as inlet temperature, inlet velocity, heat transfer of wall body, distance of heat source and so on

    本文的研究工作主要包括以下幾個方面的內容: （ 1 ）綜述了國內外相關的研究現狀和研究背景; （ 2 ）簡介了置換通風的工作原理，並分析了它相對于混合通風的優良特性及評價指標、末端裝置等; （ 3 ）對採用置換通風方式房間的溫度場、速度場和氣流分佈進行了模擬計算與分析; （ 4 ）對採用置換通風方式房間的熱力分層高度進行了模擬計算，並分析其影響因素，如:送風溫度、送風速度、圍護結構傳熱和熱源分佈等; （ 5 ）擬合了無量綱熱力分層高度相應于送風溫度t 、送風速度v 、熱源間距離l和圍護結構傳熱q的經驗公式。
  8. Since 1980 ' s, some advanced countries, such as the united state, british and canada, have generally established financial system of mixed operations instead of specialized operations. in that case, more and more financial supermarkets appear while commercial bank mixing with investment bank becomes the global tendency. thus, after wto entry, it is impossible for china to stray off the world financial trend

    80年代以來，在市場力量的作用下，英國、日本、加拿大、美國等西方主要發達國家相繼放棄金融業分業經營制度，重新確立混業經營的金融制度， 「金融超市」 、 「金融巨無霸」隨之不斷涌現，商業銀行融合投資銀行業務成為了全球金融業的發展趨勢，加入wto后的中國在金融制度方面不可能長期游離於世界潮流之外。
  9. The main contributions of this work are included as follows : ( 1 ) numerical tests of the outside axial and helical flows were carried out respectively. the velocities and pressure profiles and shear distributions have been obtained and they were compared due to the different flow field. it is concluded that when no particles are deposited, the helical flow would lower the pressure on membrane surface to some little extent but not markedly

    （ 1 ）對外軸向流和外切向流兩種方式下膜器環隙內流場進行變參數數值實驗，作出流場及切應力的分佈規律，分析無顆粒沉積時層流條件下流動結構對過濾通量的影響，認為：採用外旋流的方式將對膜面壓力有削弱作用，但並不明顯。
分享友人
分享到 Line

分享到臉書