直鏈狀分子 的英文怎麼說

中文拼音 [zhíliànzhuàngfēnzi]
直鏈狀分子 英文
linear chain molecule
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 鏈 : Ⅰ名詞1. （鏈子） chain Ⅱ動詞（用鏈栓住） chain; enchain Ⅲ量詞（計量海洋上距離的長度單位） cable length
  • 狀 : Ⅰ名詞1 （形狀） form; shape 2 （情況） state; condition; situation; circumstances 3 （陳述事件或...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  1. Dundrum, south, or sutton, north, both localities equally reported by trial to resemble the terrestrial poles in being favourable climates for phthisical subjects, the premises to be held under feefarmgrant, lease 999 years, the message to consist of 1 drawingroom with baywindow 2 lancets, thermometer affixed, 1 sittingroom, 4 bedrooms, 2 servants rooms, tiled kitchen with close range and scullery, lounge hall fitted with linen wallpresses, fumed oak sectional bookcase containing the encyclopaedia britannica and new century dictionary, transverse obsolete medieval and oriental weapons, dinner gong, alabaster lamp, bowl pendant, vulcanite automatic telephone receiver with adjacent directory, handtufted axminster carpet with cream ground and trellis border, loo table with pillar and claw legs, hearth with massive firebrasses and ormolu mantel chronometer clock, guaranteed timekeeper with cathedral chime, barometer with hygrographic chart, comfortable lounge settees and corner fitments, upholstered in ruby plush with good springing and sunk centre, three banner japanese screen and cuspidors club style, rich wine - coloured leather, gloss renewable with a minimum of labour by use of linseed oil and vinegar and pyramidically prismatic central chandelier lustre, bentwood perch with a fingertame parrot expurgated language, embossed mural paper at 10 - per dozen with transverse swags of carmine floral design and top crown frieze, staircase, three continuous flights at successive right angles, of varnished cleargrained oak, treads and risers, newel, balusters and handrail, with stepped - up panel dado, dressed with camphorated wax, bathroom, hot and cold supply, reclining and shower : water closet on mezzanine provided with opaque singlepane oblong window, tipup seat, bracket lamp, brass tierod brace, armrests, footstool and artistic oleograph on inner face of door : ditto, plain : servant s apartments with separate sanitary and hygienic necessaries for cook, general and betweenmaid salary, rising by biennial unearned increments of 2, with comprehensive fidelity insurance annual bonus, and retiring allowance based on the 65 system after 30 years service, pantry, buttery, larder, refrigerator, outoffices, coal and wood cellarage with winebin still and sparkling vintages for distinguished guests, if entertained to dinner evening dress, carbon monoxide gas supply throughout

    一截彎木上棲著一隻馴順得能停在手指上的鸚鵡它吐字文雅，墻上糊著每打價為十先令的壓花壁紙，印著胭脂紅色垂花橫紋圖案，頂端是帶狀裝飾一連三段櫟木樓梯，接連兩次拐成直角，都用清漆塗出清晰的木紋，梯級登板起柱欄桿和扶手，一律用護板來加固並塗上含樟腦的蠟浴室里有冷熱水管，盆湯淋浴，設備俱全。位於平臺246上的廁所里，長方形窗子上嵌著一塊毛玻璃，帶蓋的坐式抽水馬桶，壁燈，黃銅拉鏈和把手，兩側各放著憑肘幾和腳凳，門內側還掛有藝術氣息濃厚的油畫式石版畫。另外還有一間普通的廁所廚師打雜的女僕和兼做些細活的女傭的下房裡也分別裝有保健衛生設備僕役的工錢每兩年遞增兩英鎊，並根據一般忠誠勤勞保險，每年年底發獎金一英鎊，對工滿三十年者，按照六十五歲退職的規定，發退職金餐具室配膳室食品庫冷藏庫主樓外的廚房及貯藏室等堆煤柴用的地窨子里還有個葡萄酒窖不起泡亮光閃閃的葡萄酒，這是為宴請貴賓吃正餐身穿夜禮服時預備的。
  2. For chitosan, when the concentration of chitosan is under 0. 1mg / ml, the structure of molecular chain can be observed by afm. at the same time, the refined structure of lyotropic liquid crystal of chitosan and the changes of structure were studied. films with liquid crystalline texture can be prepared from diluted solutions which concentration is lower than critical concentration of liquid crystal

    對于殼聚糖（ chitosan ） ，通過afm直接對殼聚糖進行分子結構水平的觀察研究，發現在濃度低於0 . 1mg ml的稀溶液中用afm可以清楚觀察到糖鏈間形成的環狀或螺旋結構，以及鏈內側枝繞合排列的樹枝狀結構，這種現象是由於糖鏈間和糖鏈內的氫鍵締合所致。
  3. In this reactor, a series of nano - sized crystals, one - dimension chain structure of [ cu ( idac ) ( h20 ) 2. and [ ag ( l - phe ) ] were formed through self - assembly with different length and diameter. the length and diameter of the nanorods could be adjusted by changing the molecular weight of peg and the content of the water in the reactor

    在該反應器中，通過改變peg的分子量和調節反應器中水的含量，過渡金屬離子和氨基酸分子通過自組裝方式結合形成了一系列不同長度和直徑的一維鏈狀的[ cu （ idac ） （ h _ o ） _ 2 ] _和[ ag （ l - phe ） ] _納米晶。
  4. Following the development trend of valve cad, according to the requirements of the chengdu chengfeng valve limited company and based on mdt, this article develops the 3d parametric valve design system. the main work and achievements are as follows : based on the 2d engineering drawing of the several different valves the company provided, the 3d parametric basic drawing - base is set up using mdt which is a 3d design platform, including all the parts drawings and the general assemblage drawings of the valve models ; in accordance with the common steps of the valve design, the parameter editors are designed to edit, import and export the valve parameters and are provided with the function of double synchronization on parameters displaying for convenience in use ; in order to meet demands of users and make the design more accurate, reliable and practical, the assistant formula calculators are developed, which can automatically do all types of structure calculation in the procedure of valve design, and export the calculation manual of valve design ; in order to make designers more rivalries, taking full advantage of internetmntranet technology, the virtual design center is developed, which integrate netmeeting, terminal service and super links, so that the designer can directl y use applications on remote server, communicate with other designers on intranet / internet, share software resources and realize long - distance cooperative design

    根據閥門cad發展趨勢，針對成都乘風閥門有限責任公司閥門設計現狀，本課題基於mdt三維設計平臺開發了閥門三維參數化設計系統，主要完成的工作和成果如下：根據公司提供的幾種不同結構閥門的二維工程圖紙，利用mdt三維設計平臺建立了三維參數化基本圖形庫，其中包括所有零部件和總裝配模型圖及二維工程圖；依照閥門設計的一般步驟設計了參數編輯器，用來對閥門尺寸參數進行編輯、輸入、輸出等，具有參數雙向同步顯示功能，使用十分靈活方便；根據用戶的需求，為了使設計達到精確、可靠、實用的要求，設計開發了輔助計算器，能自動完成閥門設計過程中所需的各種結構計算，並可以輸出閥門設計計算說明書；為了使設計人員更具有競爭力，本系統利用internet intranet技術設計開發了虛擬設計中心子模塊，虛擬設計中心集成了網路會議、終端服務、超級鏈接等功能，可以讓設計師直接使用服務器上的應用程序，與intranet internet上的其他設計專家進行交流、共享軟體資源，實現遠程協同設計。
  5. The microcrystalline was same to the direction of electric field. the microcrystalline orientation of the film that was obtained by melting pvdf congealing in the effect of electric field changed along electric field obviously. comparing with the film congealing without electric field their crystalline plate become thick

    發現pvdf纖維在電場作用下微觀結構變化較大，極化后微晶取向發生較大變化，極化以後微晶變化為沿電場方向取向的厚片狀，熔融態的pvdf在電場作用下凝固時變化更明顯，與不加電場直接凝固的pvdf膜相比，在電場作用下幾乎所有的分子鏈都沿電場方向取向所以出現有序的片晶結構，而且結構緻密。
  6. Xrd test results showed that pp polymer chains have intercalated lays of ommt among the series pp - b. tem observed that ommt was stripped and close to the single layer of slices ; among the series pp - a, the characteristic diffraction peak of ommt still appeared the original position, which prove pp polymer chains were too difficult to intercalate directly lays of ommt, tem observed that ommt have serious reunion phenomenon and the majority exist by form who regiment form a cluster

    Xrd測試結果表明： pp - b系列中的pp高分子鏈已經插層進入到有機蒙脫土的片層間， tem觀察有機蒙脫土大部分被剝離成接近單層片狀； pp - a系列中，有機蒙脫土的特徵衍射峰仍出現在原位置，說明pp大分子鏈很難直接插入蒙脫土片層間， tem觀察有機蒙脫土較嚴重的團聚現象，大部分以團簇的形式存在。
  7. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  8. The direct torque control theory is a kind of new control method after vector control theory in ac control field. it calculates and controls the torque and the flux of ac electromotor in stator coordinate using the voltage space vector. adopting the stator magnetism field direction method, it recurs to discrete pang - pang control producing pulse width modulation signal and controls the switch state of the transductor when better quality steady - state performance is produced

    直接轉矩控制技術是繼矢量控制技術之後交流調速領域中新興的控制技術，它採用空間矢量分析的方法，直接在定子坐標系下計算並控制交流電動機的轉矩和磁鏈，採用定子磁場定向，藉助于離散的兩點式控制產生脈寬信號，直接對逆變器的開關狀態進行最佳控制，以獲得轉矩的高動態性能。
  9. Three kinds of the usual methods of rotor flux estimation are compared and analyzed, and the method of rotor flux estimation based on the voltage model is studied in detail. and the output phase voltage is reconstructed by means of the dc - bus voltage and the switching states of the inverter, the effect of the dead time and saturating voltage - drop of the switches on flux estimation is discussed. and the method of synchronizing instant speed identification is also studied deeply

    本文對三種常用的轉子磁鏈觀測方法進行了對比分析，在此基礎上著重研究了基於電壓模型磁鏈觀測方法，分析了利用直流母線電壓和逆變器三相開關管的狀態進行輸出電壓重構方法，討論了死區時間和開關管飽和壓降對磁鏈觀測結果的影響，深入研究了同步瞬時轉速辨識方法。
  10. In the conventional pmsm dtc system, the stator flux linkage is calculated from the integration of the difference between the machine input voltage and voltage drop across the stator resistance, and the input voltage is obtained by synthesizing the dc - link voltage and the switching mode of the inverter

    在常規直接轉矩控制系統中，定子磁鏈是通過直接積分電機端部輸入電壓與定子電阻壓降之差計算得到的。電機端部的輸入電壓又是通過電機直流母線電壓和逆變器的開關狀態綜合得到的。
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