double ratio 中文意思是什麼
double ratio
解釋
【數學】交比。-
In algorithms, classification algorithms are divided into two cases : one for known statistical distribution model and the other for unknown statistical distribution model. four classification algorithms, the bata - prime statistic model fusing quadratic gamma classifier, based on sar image rcs reconstruction and space position mode, on the mixed double hint layers rbfn ( mdhrbfn ) model and on the self - adapt fuzzy rbfn ( afrbfn ) model, are derived. the problems, including how to further improving the class ratio of the bayes decision, decreasing the dependence on the statistical model and directly providing the adapted algorithm with samples, are solved
提出了基於徑向基函數神經網路（ rbfn ）的雙隱層混合網路（ mdhrbfn ）模型，解決了標準神經網路在具體sar圖像地物分類中分類類別數目不夠和分類精度差的問題；提出了基於模糊推理系統的自適應模糊rbfn分類（ afrbfn ）模型，兼顧通用性與精確性，增強人機交互能力，進一步提高了演算法分類率。 -
Then, six evaluation methods ( double ratio analysis evaluation method using regional rainfall tendency control for single cloud seeding operation case, regression analysis evaluation effects on the bases of regional correlation and developing tendency of rainfall, multiple regression analysis evaluation effects on the bases of regional developing tendency of rainfall, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as meteorological covariates, cluster - analysis - based floating control historical regression method with uniform precipitation used as meteorological covariate, and float ing control historical regression method ) were compared and analyzed with the case of the cloud seeding operation on 5 april 2002 in henan province
然後，以河南省2002年4月5日飛機增雨作業為個例，對作業區域趨勢對比雙比分析評估方案、區域趨勢相關回歸分析方案、區域趨勢多元回歸分析方案、以降水量為協變量的ca - fcm方法、以降水量和整層大氣可降水量為協變量的ca - fcm方法和fcm方法6種評價方案進行分析比較。 -
Utilizing the electric double layer produced by hydration of cement to gather in superfluous water at negative electrode and reduce the water cement ratio of solidification by using electroosmosis technology
方法採用電滲技術，利用水泥水化產生的雙電層的導電性能，使混凝土中的多餘水分向陰極聚集，以減少混凝土的凝結水灰質量比。 -
Ir, sem - edx, and water contact angle measurements on polysilane and polyacrylate film obtained by double operations and single operation showed that the influence of weight ratio of polymers, the molecular of pmma on film structure was great. the film translucence dropping while the ratio of pmma / pmts grew and the compatible reducing while the molecular of pmma increased
通過測定所配製的系列濃度聚合物甲苯溶液、 thf溶液的表面張力發現：有機硅聚合物溶液的表面張力值在有機硅聚合物濃度低於30時變化不明顯；而甲基丙烯酸酯聚合物溶液表面張力值隨甲基丙烯酸酯聚合物濃度的變化比有機硅聚合物溶液明顯。 -
Waveguide assemblies, flexible, twistable double ridge band width ratio 2. 4 1, class 5, detail specification for
5類2 . 4 1雙脊可扭軟波導組件詳細規范 -
The study report assumes a price of $ 7, 000sq ft for the development, based on total construction costs, inclusive of the canopy, of about $ 3, 000sq ft and an accommodation value of around $ 4, 000sq ft. if the plot ratio were to double, meaning if twice the floor area of buildings were to be constructed, maintaining an accommodation value of $ 4, 000sq
評估報告中假設，發展項目的樓價約$ 7 ， 000尺，總建築成本連天篷約$ 3 ， 000尺，故樓面地價約$ 4 ， 000尺。如容積率提升一倍，即樓宇面積增加一倍，樓面地價維持$ 4 ， 000 ，地價則提升一倍，而基金及營運收入等亦會相應增加。 -
The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。 -
In the condition of same condensation temperature and evaporating temperature, the cop of the basic gax cycle is lower than that of the simplicity cascade cycle, but it is greatly better than the mid - pressure double - effect cascade cycle, on the other hand, the work condition is not as rigor as the simplicity cascade cycle, so the ratio of performance and cost is relatively high
在相同的冷凝溫度和蒸發溫度下，基本gax循環的性能系數（ cop ）雖然比單純復疊循環的低，但要遠遠優于中壓雙效復疊循環，而且運行的條件不象單純復疊循環那樣苛刻，故基本gax循環的性價比較高。 -
Though the water levels cross one section are almost equal, the velocities differ greatly. at the some cross - section, the velocity in the in the quirk may be double as that on the floodplain. the water surface will rise hi the southern branch because of the improper diffluence ratio, if using the designed diffluence col
淮河入海水道河口段水位值橫向分佈相差無幾，而流速的橫向變化較大，泓灘平均流速差最大可達一倍以上，在現有的分流口設計條件下，若按設計的南北汊分流比，南分流口有壅水現象發生，如果南汊分流增大到800m ~ 3 / s左右時，則水流較為通暢。 -
To meet the need of grain production, investigations such as property of nutrients uptake of high - yielding wheat, regularity of nutrient requirement of high - yielding maize, proper rate and ratio of npk fertilizers for high yields of wheat and maize, and rational rate and ratio of organic - n to inorganic - n in double cropping system have been conducted by shuming z. and yizhi l. et al. since 1980
為了滿足糧食生產需要，自1980年以來，張漱茗和劉毅志等人就開始調查高產小麥養分吸收特性、高產玉米養分需求規律、高產小麥和玉米氮磷鉀肥適宜用量和比例、一年兩作制中有機氮和無機氮的合理用量和比例。 -
The part for die locking in double - toggles with five - hinge linkages, fast and stable for die moving, with large increase ratio and reliable for die locking
合模部件為雙曲肘五鉸鏈桿機構，移模採用快速平穩，增力比大，鎖模可靠。 -
On the condition of “ many - head ” and “ small drive ratio ” ， the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously. it has devoted to a new type hourglass worm _ sphere double enveloping hourglass worm. the coordinate system is established according to the frock. the meshing equation and the tooth equation of worm and gear have been developed and the distribution of contact line on gear tooth is analyzed. to evaluate the meshing quality ， four meshing quality indexes and five original parameters are put forward. through mass programming computing ， the relations between meshing quality and original parameters are derived and depicted by graphs
考慮到平面二次包絡環面蝸桿傳動在多頭小傳動比條件下根切與齒頂變尖的矛盾很難同時解決且嚙合性能較差，介紹了一種新型環面蝸桿傳動? ?球面二次包絡環面蝸桿傳動.在研究過程中，根據工裝建立了坐標系，根據一二包過程的運動關系推得了嚙合方程和蝸桿與蝸輪的齒面方程，分析了蝸輪齒面上的接觸線分佈.為了評價嚙合性能，提出了4項性能指標和5項原始參數，通過大量編程計算得到了嚙合性能指標與原始參數之間的關系，並以圖表直觀的表示 -
We examin e the generation of bell state in bose - einstein condensates of two interacting species trapped in a double - well configuration analytically and the density of probability for finding the entangled bell state is given. we find that the oscillation amplitude of the probability of density for finding the entangled bell state becomes greater as the ratio of the interspecies interaction strength and the tunneling rate increases, moreover the self - interaction strength of the component a ( b ) has no effect on it. also we use the time - dependent su ( 2 ) gauge transformation to diagonalize the hamilton operator, obtain the berry phase and analytically the time - evolution operator
此外我們還研究了在雙阱玻色-愛因斯坦凝聚中糾纏態的演化，研究發現隨著組分間相互作用和隨穿率的比值的增加系統演化到bell態的概率變大，而且組分自身內在的相互作用對形成bell態的幾率沒有影響；並且用含時su （ 2 ）規范變換對角化哈密頓量得到了系統的berry位相和時間演化算符，並研究了量子隨穿過程。 -
The correlated double sampling ( cds ) circuits structure is used to reduce the fixed pattern noise ( fpn ) of the cmos sensors, and improve the signal - noise ratio ( snr ). the 256 photodiodes arrayed 4 quadrants sensor consists 16x16 active photodiodes array. correlated double sampling processing circuits, output buffer amplifiers and digital control part
針對cmos製造工藝中mos器件固定模式噪聲（ fixedpatternnoise ， fpn ）較大的不足，研究中採用了相關二次采樣（ correlateddoublesampling ， cds ）電路降低固定模式噪聲，從而提高了傳感器的信噪比（ signalnoiseratio ， snr ） 。 -
Analysis of the system indicates that the primary energy ratio of this system is 1. 85, which is double than that of the conventional separated production system, and the cogeneration system saves about 57 % standard gas consumption in comparison of the conventional separated production system
分析結果表明：燃氣機熱泵的熱、電、冷三聯供總能系統的標準氣耗僅為熱、電、冷分供系統的一半左右。 -
Citing five - meter - high nanfei river rubber dam in hefei, one of the highest double - anchor water rubber dam in china as an example, while deeply analyzing some representative rubber dam projects in china, the article theoretically exploits the relationships among some technical parameters such as anti - pull intensity, internal pressure ratio, circum - oriented relative extending rate, etc. also has the author brought up his own opinion on rubber dam design & calculation theory, which is of high theoretical and applicative value for parameter optimization and combination of water rubber dam with a height of above 3. 5 meters. it also helps when building over - five - meter - high rubber dam using seamless rubber dam and rubber dam with steel wire as its frame. this article also exploits safety measures for designing & building rubber dam in navigation areas
本文以充水式雙錨固橡膠壩目前國內最高（壩高5m ）之一的合肥市南淝河橡膠壩工程為例，並在對全國目前已建橡膠壩代表工程進行深入分析的基礎上，對壩袋的抗拉強度、內壓比、環向相對伸長率等技術參數之間的關系進行了理論探討和研究，並對橡膠壩設計計算理論提出了自己的見解和看法，對指導設計壩高3 . 5m以上的充水式橡膠壩技術參數的優化組合具有重要的理論和應用價值，特別對應用無搭接縫橡膠壩、鋼絲網骨架橡膠壩建造壩高大於5m的橡膠壩具有指導意義。 -
The distance of the single - row curtain grout hole is between 1. 4 to 1. 8 meter, and 2. 0 meter is suitable for the double - row curtain ; the grouting pressure generally is 1. 0 to 1. 5 mpa at the first three grout compartment, then grouting pressure of under the fourth control in 4 to 5 mpa ; for mast grout compartments, a water - cement ratio of 2 or 1 may used in the first grouting
鉆孔密度也由原來的0 . slm / mz降至o . 64n擴mz ，節約工程投資447 . 35萬元。 6 、單排帷幕的孔距在1 . 4一1 . 8m之間，雙排帷幕的孔距以zm為宜;灌漿壓力在地表以下前三段一般為1一1 . smpa ，第四段以下按4一smpa控制;對大部分孔段而言，開灌水灰比可定為2或1 。 -
Kone technology, original european hydraulic cylinder, pumping station and control system, ensure superior quality, high reliability and longtime life of our products. multi - type operation modes such as single - cylinder and double - cylinder in 1 : 1, 2 : 1, 4 : 2 ratio instead of traditional mrl solutions can save building space and construction costs and serve in over - loading vertical transportation locations
引進通力技術，原裝進口歐洲全套液壓油缸泵站和控制系統，保證了產品品質可靠性和長使用壽命單缸雙缸1 ： 1 2 ： 1 4 ： 2等多種經典結構，是傳統的無機房解決方案，可減少建築空間降低建築造價，能勝任各種重載大噸位垂直運輸場合。 -
The simulated test of the mechatronics soft start equipment is made regarding the experimental platform of belt conveyor as load, the sensor design is had for selecting type, the testing datum are gatherd and analyzed, the rational curve of velocity in the starting and braking progress are gained, the best matching ratio of driving power for the double asynchronous moters is found
以帶式輸送機實驗臺為負載進行了機械電子式軟起動裝置的模擬試驗，對傳感器進行了選型設計，對試驗數據進行了採集與分析，確定了合理的起、制動速度曲線，求出雙電機驅動功率的最佳配比。 -
Constructing cdna expressing library of erythrocytic plasmodium falciparum from hainan : the total rna was obtained by using. triplix kit. a modified oligo ( dt ) primer ( cds ffi pcr primer ) was used in the single - stranded ( ss ) dna synthesis reaction. the ss - dna was reversely transcripted from total rna. double - stranded ( ds ) cdna was amplified by long - distance ( ld ) pcrafter the digestion with proteinase k and sfi i, the cdna with no less than 200bp was collected and purified by glass - milk kitthe library was constructed after the ligation of cdna to tiplex2 phage particle packaged with the packaging extract system in vitro. a high titer and high recombinant ratio of cdna library was constructed
構建惡性瘧原蟲海南株紅內期cdna表達文庫提取紅內期惡性瘧原蟲海南株總rna ，直接以總rna為模板使用cdna文庫構建試劑盒，首先反轉錄合成ss一dna ，再擴增合成ds一dna （ cdna ） ，對擴增產物用蛋白酶k消化及左z丁i酶切，抽提蛋白、去除rna后，用玻璃奶試劑盒純化、回收20obp以上的片斷，經與載體連接再用蛋白包裝物包裝后形成未擴增文庫，最後擴增完成惡性瘧原蟲海南株紅內期cdna表達文庫的構建。
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