超方向性 的英文怎麼說
中文拼音 [chāofāngxiàngxìng]
超方向性
英文
superdirective-
The microphone has very selective directionality - we use the term ' hyper - cardioid ' to describe the directional characteristics of the unit
麥克風已經非常有選擇性的方向性-我們用 '超心 '來形容定向結合本單位的特點。Semiquantitative analysis of lignin content in the culm by confocal laser scanning microscopy ( clsm ) showed that lignin contents are elevated in lodging - resistant varieties and this together with the anatomical features may provide higher culm strength resulting in increased lodging - resistance
因此，在超高產小麥品種的選育上，重視外源基因的引進，改進莖稈的結構特性及提高其木質素含量，可能是一個重要的選育方向。Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000
利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和，在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數Among the five kinds of nde ways ( rt, ut, et, pt, mt ), ultrasonic testing technology develops very fast because of its merits such as good orientation, strong penetration ability, higher energy and no harm to human health
在五大常規無損檢測方法中（射線、超聲、渦流、滲透、磁粉） ，超聲波無損檢測因其方向性好、穿透能力強、能量高以及對人體無害等優點而得到了迅速發展。As the uwb characteristics are represented at not only directional diagram and impedance bandwidth but also phase distortion
由於超寬帶特性不僅僅體現在方向圖和阻抗的帶寬上，而且要考慮其相位失真。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。The construction of the composite information prospecting model for deposit concentration areas and the composite information prognostic model for deposit concentration areas seems to be the key problem in the prognosis
由於貴金屬與有色金屬大型、超大型礦床密集區控礦因素的共性，故成礦系列理論應用於大型、超大型礦床預測是今後研究的主攻方向。Some cases that laid particular emphasis on " thoughts exploration " are also comnlented. such as illich ' s theory of * ' deschooling society " and four kinds of learning netxxorks. goodman ' s " six substituting proposa1s ", the description of learning society based on self leaming principle in learning to be, etc.
在上述這些理念與行為的巨大變化背後，是更為深層的思維方式上的轉變，具體表現為：從樸素的經驗與缺少實證的思辨轉向以「假設驗證」為基本程序的實證主義經驗思維，以連續性原則超越二元對立思維方式、以系統思維方式超越線性思維方式，以動態生成觀點豐富穩態系統內部相互作用的觀點。Compared with the effect of mutual coupling to general antenna arrays, chebyshev - dolph antenna arrays, schelkunoff super - derective arrays and chebyshev - dolph super - derective
比較了互耦對等幅同相天線陣、 chebyshev - dolph天線陣、 schelkunoff陣和chebyshev - dolph超方向性陣天線遠場方向圖的影響。Because super - directive arrays can supply better directive performance than the general arrays, we analyses the two pattern synthesizes that is the schelkunoff unit - circle method and the chebyshev - dolph super - directive synthesis method of the line arrays in detail
由於超方向性陣列天線可以提供比普通陣列天線好得多的方向特性。本文尤其對線陣的schelkunoff單位圓綜合法和chebyshev - dolph超方向性綜合法作了詳細的分析。Based on reviewing the historical background, prospecting for the development trend, analyzing the complicacy and mechanism and summing up some achievements and experiences in scientific research, several new problems and the possible direction of development in material processing technology and machine are proposed, such as, producing new concept materials possessing somespecific and extraovdinary properties by means of integrating and coalescing conelative frontier science and technology ; and thereafter a brief discussion is given
在全面綜述材料制備技術及設備發展動態的基礎上，提出了該研究領域的幾個新問題和發展方向，如通過集成和融合現代相關前沿科學和技術生產具有超常和特殊性能的新概念材料等，並進行了簡要分析和討論In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method
計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。The solid - propullant ducted rocket, which combines the advantages of solid propullant rocket and ramjet propulsion, is a new kind of combined propulsion system. it offers considerable advantages for missile propulsion, such as high specific impulse, high speed, light weight, long range, high maneuver and simple structure. as the major direction of the propulsion system for supersonic missile, the ducted rocket has good prospects
它將固體火箭技術和沖壓技術有機結合在一起，具有比沖高、速度快、重量輕、射程遠、機動性能好和結構簡單等諸多優點，最大限度地滿足了新一代導彈對其動力裝置提出的要求，是超聲速導彈動力裝置的一個主要發展方向，有著廣闊的研究前景。The characteristics of home mortgages themselves determines that there will be poor liquidity of the assets and it is because of this that at present every bank closely restricts the term of the loan. a third defect is that there are large risks because the mortgage loan is a very long - term creditor ' s asset and the bank is faced with huge risks in the interest rates. in addition, credit risks will occur when the client losses their ability to repay the loan for any reason or when the client feels that the benefits of breaching the contract outweigh the losses and the bank, as the operator of the financial products as its main business, will promptly recover the mortgaged items
儲蓄期限一般較短，而按揭貸款的還款期限較長，銀行長期資產與短期負債不匹配，就不能化解未來不確定性帶來的風險；二是資產的流動性和期限呈反方向變動，期限越長，流動性越低，住房抵押貸款本身的特性決定了其流動性較差，因此目前各銀行都嚴格限制貸款期限；三是風險大，由於按揭貸款是期限很長的債權資產，銀行面臨的利率風險就很大；另外，當客戶因某種原因失去償還能力或者認為違約產生的利益超過違約所產生的損失時，就會發生信用風險，而銀行以金融產品為主要業務，即使收回抵押物，但如何處置不良資產仍是諸多銀行頭痛的問題。Present methods generally based on the statistics of earthquake damage, expert experiences, theory analysis and experimental researches have obvious advantages, disadvantages and certain scopes of application ; ( 2 ) different prediction methods should be adopted against different building conditions, sites, intensity and experiences etc to predict earthquake damage of buildings for prospective accuracy, dependability and availability ; ( 3 ) earthquake damage matrix, which is the foundation of earthquake damage prediction, of 7 kinds of building in the urban areas of zhangzhou city under intensity 6 to 9 has been set up. the damage conditions of different buildings under different intensity are as followings : all kinds of structures are basically intact under intensity 6 ; the reinforced concrete structures are basically intact under intensity 7, but other kinds of structures are destroyed slightly ; the reinforced concrete structures are still basically intact while other kinds of structures are destroyed intermediately under intensity 8 ; the reinforced concrete structures are destroyed slightly, single - story factories and open houses are destroyed intermediately and other kinds of structures are destroyed seriously under intensity 9 ; ( 4 ) the results of earthquake damage predicting of buildings embody the damage when earthquake happens in the future. thus, further identifications and reinforcements should be considered to buildings that will be destroyed intermediately or more under the earthquake with 10 % exceeding probability in future 50 years ; ( 5 ) the direct economic losses caused by damage of buildings resting with the area, structural type, intensity and damage of all kinds of buildings are the main part of the losses of the city in an earthquake ; ( 6 ) the direct economic losses increased progressively toward high intensity by 2 or 3 times
基於上述研究，得出的主要結論有：建築物震害預測是一個模糊的、系統的、復雜的問題，現有的方法很多一般都是以震害統計規律、專家經驗、理論分析和試驗研究為依據，有其自身的優缺點和一定的適用范圍；應針對不同的建築物條件、場地條件、地震強度和已有經驗等，採用不同的預測方法進行建築物震害預測，以使預測結果達到預期的精確性、可靠性和可操作性；建立了漳州市區7類建築物在6度9度地震作用下的震害矩陣，成為指導抗震防災的重要依據，各類結構的震害情況表現為： 6度地震作用下各類建築物基本完好； 7度地震作用下除鋼筋混凝土結構基本完好外其餘以建築輕微破壞為主； 8度地震作用下鋼筋混凝土結構仍以基本完好為主而其餘建築以中等破壞為主； 9度地震作用下鋼筋混凝土結構以輕微破壞為主，單層工業廠房和空曠房屋以中等破壞為主，其餘建築以嚴重破壞為主；建築物的震害預測結果體現了未來地震來臨時的震害程度，在編制漳州市區抗震防災規劃時，對于遭遇50年超越概率10的地震影響發生中等以上破壞的建築物應考慮進行抗震鑒定和加固；由建築物的破壞所造成的直接經濟損失是城市地震經濟損失的主要部分，重慶大學碩士學位論文中文摘要其主要與建築物總面積、結構類型、地震烈度和各類建築物的震害程度有關;不同烈度造成的直接經濟損失按2一3倍向高烈度方向遞增，漳州市區直接經濟損失由6度至9度的比例關系為1 : 2 . 8 : 8 . 6 : 22 . 8 ;遭遇基本地震設防烈度（ 7度）時，漳州市區直接經濟損失約4 . 5億元，無家可歸人員約40000人，且以磚木結構和多層磚混結構的震害損失最大;地震造成的人員傷亡主要與建築物倒塌及嚴重破壞的程度和總面積以及震時的建築物室內人數密切相關，地震時無家可歸人員主要與住宅倒塌、嚴重破壞及中等破壞的程度和總面積以及城市人均居住面積密切相關。On the base of the analysis of the super - directive arrays, discussed the effect of mutual coupling to super - directive arrays
在對超方向性線陣進行分析的基礎上，討論了互耦對超方向性陣的影響。Substance of rock - forming and ore - forming in both jianchaling and jinchuan nickel deposit mainly derived from the upper mantle, but the former source is relatively depleted mantle. on the other hand, there exsisted the crustal contamination during the formation of the two mineral deposits, the later contaminated poorly and gave priority to deep contamination. ( 5 ) by the comparative study of jianchaling with jinchuan nickel sulflde deposit, it is pointed that small basic - ultralbasic complexes which dis
（ 5 ）通過對煎茶嶺和金川鎳礦床的比較研究，結合對國內外有關巖漿鎳礦床的比較分析，根據我國的地質特點，提出沿較老地塊邊緣分佈的特別是沿華北地塊北緣分佈的基性?超基性小雜巖體，是找尋大而富的硫化鎳礦床之有利找礦方向；而對較老地塊內部的鎂鐵質侵入體，亦應給予高度注意。The cement - based compound material with ultrahigh strength, high tenacity, high performance will be used more widely, and this is the research direction of cement science
具有超高強、高韌性、高性能的水泥基復合材料必將獲得更為廣泛的應用，超高強水泥基新型材料的試驗研究代表著水泥材料科學的研究方向。In this paper we focus on the superdirective circular array antenna
本文中我們選取超方向性圓陣列作為我們的研究對象。The laser beam treated as a linear reference is used widely in the manufacture and measurement equipments, due to its many advantages, such as high brightness, good directivity, and good coherence etc. but the further improvement of the laser directional stability accuracy is restricted by some factors, such as the environment etc, which restrain the application greatly in the ultra - precision manufacture and measurement equipments
激光光束由於其亮度高、方向性好、相干性好等優點，常被作為直線基準廣泛應用於加工和測量設備中。但由於受環境狀態等因素的影響，制約了激光方向穩定精度的進一步提高，限制了激光在超精密加工和測量設備中的進一步應用。分享友人