螺旋面面積 的英文怎麼說

中文拼音 [luóxuánmiànmiànjī]
螺旋面面積 英文
helicoidal area
  • 螺 : 1. [動物學] （軟體動物） spiral shell; snail; conch 2. （螺旋形的指紋） whorl （in fingerprint）
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 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...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 螺旋 : 1 （具有螺紋的圓柱體 屬于斜面類的簡單機械） corkscrewspin; screw; spiral; helix 2 （螺旋現象;尾旋...
  • 面積 : [數學] area
  1. Airscrew blade area

    螺旋槳葉面積
  2. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算，為了簡化計算，本文在推廣的海倫積分方程的基礎上，對方程進行了簡化，推導了nakano方程，並以平面阿基米德螺旋天線，平面等角螺旋天線，軸向模圓柱螺旋天線，具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例，用矩量法求解了天線上的電流分佈，研究了螺旋天線輻射的寬頻帶特性，所得的結果均與參考文獻吻合很好。
  3. On a level with the floor on every stairhead there was a low window which resembled a deep, square venthole, while in lanterns fastened to the walls flaring gas jets crudely illuminatcd the surrounding squalor and gave out a glowing heat which, as it mounted up the narrow stairwell, grew ever more intense

    每道樓梯的平臺邊，貼近地面都有一扇低矮的窗戶，方方正正地凹進去，像是氣窗。一些懸掛在墻壁上的燈籠，發出煤氣光焰，強烈地照射著這種種貧寒景物，還散發出一股熱氣，向上升騰，並聚積在各層狹窄的螺旋形樓梯下。
  4. Virions may be polyhedral or helical and vary greatly in size

    其形狀有多面體形和螺旋形，其體積大小多變。
  5. Our company is specialized in supplying all kinds of terminal block, switch test double block, ground block, fuse block, three - level sensor block with light, double block, universal block, integral block, nylon cable ties, cable ties, releasable cablle ties, self - locking cable tie, marker calbe ties, flexible pipe, cable marker, expansion nail / plug, wire joint, cable clamp, nail clip, screw on wire connector, self - adhesive tie mount, spiral wrapping band, wire connectors, cable tie mounts, nylon fasteners, cable gland, nylon ties, cable terminal, terminals, terminal connector, wiring duct, pre - insulated terminals, cable markers, electrician tools, cabling accessories, plastic cable ties, wire tie, tie wrap, beaded tie wraps, tie wrap adhesive, tie wrap tool, cable, wires, terminal connector, terminal block, nail, nylon cable glands, pe tubing and quick screw connector, circle nail cable clips, self - adhesive tie mounts, expand nails, spiral wrapping bands, screw on wire connectors, copper connecting terminals, pre - insulated electrician tools, wire connectors, cable tie mounts, nylon fasteners, nylon ties, cable terminal, pre - insulated terminals, cabling accessories, plastic cable ties, wire tie, tie wrap, beaded tie wraps, tie wrap adhesive, tie wrap tool, cable, wires, terminal connector, terminal block, nail, nylon cable glands, cable accessories, wiring accessories etc. we offer superior product and best service with competitive price

    我們公司是專門供應各種終端塊，交換機測試雙重座，地面座，保險絲座，三層傳感器座輕型雙座通用塊，積分塊，尼龍電纜聯系，電纜聯系，松解錨索關系自鎖式電纜接頭，光纜標記關系，軟管，電纜標記，膨脹釘/插頭，電線接頭，電纜鉗，夾釘，螺絲電線連接，自粘配合摩，螺旋帶包，導線連接器，線纜配合固定座，尼龍緊固件，電纜壓蓋，尼龍關系，電纜終端，終端，終端連接器，電線導管，預終端絕緣，電纜料，電工工具，電纜配件，塑料電纜聯系，配合鋼絲，為配合劇情，串珠配合纏上搭膠包裹，包裹配合工具，電纜，電線，終端連接器，終端塊，釘，尼龍索腺體，聚乙烯管材及快速接頭螺絲，圓釘電纜夾，自粘配合固定座，擴大釘，螺旋帶包螺桿導線連接器，銅接線端子，預絕緣電工工具，電線接頭，電纜接頭固定座，尼龍拉鏈，尼龍關系，電纜終端，預終端絕緣，電纜配件，塑料電纜聯系，配合鋼絲，為配合劇情，配合串珠包，搭包膠，配合工具包，電纜，電線，終端連接器，終端塊，釘，尼龍腺體電纜，電纜配件，線路配件等，我們提供卓越的產品和最好的服務，具有競爭力的價格
  6. 3. the trapping characteristics of ordinary helical gear pump are lucubrated by theory for the first time, the theoretic relation of the gear rotor between the end overlap coefficient and trapping phenomenon is discussed respectively with clearence or without clearcence, and the relation of trapping volume with the rotational angle turn is also discussed. the selective range of the helical angle that can eliminate completely the trapping of helical gear pump is gained, which never appeared in literature before

    首次對普通斜齒齒輪泵的困油特性進行深入的理論研究，分別討論了有側隙和無側隙時普通斜齒齒輪泵轉子的端面重合度與困油現象之間的理論關系，以及困油容積隨轉角的變化關系，得到了完全消除斜齒齒輪泵困油沖擊的螺旋角機械科學研究院博士學位論文的選擇范圍。
  7. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  8. The buoys are anchored using helix anchors, which have a small footprint on the sea bed, are long - lasting and can be positioned extremely accurately

    浮標採用螺旋形海錨， ?海床面積極小，長期固定，定位精確。
  9. Finned tube is welded the finned helix pieces on the smooth tube, expanding 4 ~ 10 times of the heat transfer surface, highly elevated the heat - transfer coefficient of the tube to reach the purpose of rapid, efficient heat transferring

    翅片管是在鋼管外表面焊上螺旋型翅片，擴展外表面傳熱面積4 10倍，大幅提升管子的傳熱系數，達到高效快速傳熱的目的。
  10. We sincerely hope to establish friendly mutual - benefit business relationship with customers abroad and home

    由四根螺旋盤條組成的球狀螺旋組合網，結構牢固，有效過濾面積大。
  11. Oblique spiral crowd the thick liquid machine is used for making concentrating and washing to various kinds to various kinds of paper pulps of papermaking trade of thick of thick liquid mainld. especially it is suitable for dehydration concentrate of wasted paper pulp. with pairs of spira crowd thick liquid machine machine in series, it can reach the needed of treatment density of the hot dispersing, achine. it have the advantage such as heavy productivty, dehydrate effectual, save floor space, convenient operate and maintain

    斜螺旋擠漿機主要用於制漿造紙行業對各種紙漿的濃縮和洗滌，尤其適用於廢紙漿的脫水濃縮，與雙螺旋擠漿機串聯使用可以達到熱分散機所需的處理濃度，具有生產力大、脫水效果好，節省佔地面積，操作維修方便等優點。
  12. The running condition would be deteriorated and at last the parts of the engine would be damaged if the revolution were reduced too low. the propeller must be redesigned or be modified in this situation. people usually modify the propeller rather than change the propeller because it will be more easily and economical

    此時若要更換新的螺旋槳必然造成經濟上過重的負擔，較方便可行的方法是對原來的螺旋槳採取切邊修改的方法，減少螺旋槳的直徑、盤面積或螺距，使螺旋槳的扭矩減小，螺槳變「輕」 。
  13. Presently most of the theoretical method to predict the propeller - induced hull pressure fluctuation is based on the calculation method in which the pressure is induced by pulsating source in infinite flow. the calculation method is adopted and the corresponded computer program is complied. the propeller - induced hull pressure fluctuation due to blade thickness, blade load, cavity thickness and the change of the cavity volume can be analyzed respectively in the computer program

    目前，螺旋槳誘導的船體表面脈動壓力的理論預報方法，大多是以無限流場中點脈動源誘導的周圍流場的脈動壓力的計算方法為基礎的，本文採用該方法編制了計算程序，可以分別考慮槳葉厚度、槳葉負荷、槳葉上空泡厚度及其體積變化在船體表面指定位置上產生的脈動壓力。
  14. It is the most famous teaching hospital well - equipped with whole - length helix ct, ect, mri, dsa, color ultrasound, high pressure oxygen storehouse and that kind of modern medical devices in heilongjiang province

    醫院佔地面積50萬平方米，設有床位1685張，擁有伽瑪刀全身螺旋ct ect mri dsa新型體外震波碎石機高壓氧倉等現代大型醫療設備。
  15. Large - area helical carbon microcoils with superhydrophobicity over a wide range of ph values

    范圍內超疏水大面積的微米螺旋炭絲
  16. Enhanced heat transfer tube with spiral - surface has simple frame, cheap cost, and wide - ranging purpose. only few dirt can adhere to it and is easy to be washed. it has distinct strengthen effect, and can improve chief heat transfer coefficient at 35 - 40 % comparing with smooth tube exchanger which has same volume and pump power consumption

    螺旋型表面強化管結構簡單，成本低廉，用途廣泛，結垢少且易清洗，其強化效果明顯，與體積、消耗泵功率相同的光管式換熱器相比，螺旋槽管換熱器可以將總傳熱系數提高35 40 ，因而備受人們青睞。
  17. The spiral sheet metal carry the lotus test to be apply in the bearing power test of the deep foundation soil and water table following foundation soil extensively because the ability goes into the surface of earth is following the certain depth area curve carry on test, according to the element that the spiral sheet metal carries the lotus test, through contrast with plate load test, the spiral sheet metal carries the lotus test to be applicable to the shallow storey foundation soil equally, the size of the spiral sheet metal time area concentration diagram is not big to the test result influence, the spiral sheet metal carries the bearing power of the lotus test assurance to no longer carry on the depth area curve redress

    摘要螺旋板載荷試驗因能旋入地面以下一定深度進行試驗而廣泛應用於深層地基土及地下水位以下地基土的承載力測試，根據螺旋板載荷試驗的原理，經與平板載荷試驗對比，螺旋板載荷試驗同樣適用於淺層地基土，螺旋板面積的大小對試驗成果影響不大，螺旋板載荷試驗確定的承載力不再進行深度修正。
  18. This paper has presented the calculation formula and numerical solution methods to determine the range and volume of partially cavity, supercavity by using surface panel method, and has predicted the range and volume of unsteady cavitation of propeller by using surface panel method for the first time inland

    本文敘述了應用面元法確定非定常螺旋槳局部空泡、超空泡的范圍和體積的計算公式和數值求解方法，在國內首次應用面元法預報了螺旋槳非定常空泡的范圍和體積。
  19. In this dissertation, each of the twt component building blocks, such as the electronic gun, slow - wave structure and the collector, is presented. the thermal theories and the thermal conduction ways of each subsystem are discussed. the author presents some advice on the fast working of twt, the optimization of helix - slow wave structure, and how to minimize the collector

    本文論述了小型化行波管電子槍、慢波結構和收集極等部分產生熱的機理以及熱傳導過程，針對小型化行波管的啟動速度、改善和優化螺旋線慢波結構以及縮小收集極體積等方面的提出了改進建議與設計。
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