相對頻度 的英文怎麼說

中文拼音 [xiāngduìbīn]
相對頻度 英文
relative frequency
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 相對 : 1. (面對面) opposite; face to face 2. (非絕對的) relative 3. (比較的) relatively; comparatively
  1. The dissertion, after introducing physical geography situation and societal economic sitiuation of chongqing, has also analysed the basic feature of water resources in chongqing, at present the water resources utilization in chongqing is still in traditional phase. there are so many faults and shortcomings in water resources management system. the construction of water resources institutions and regulations is fallen behind. the supply of water resoures has not sufficiently satisfied the demand to water resources. the condition of water quality has not radically improved. soil losses is still serious. the incidence of flood and drought is very high. in accordance with present condition of water resources utilization in chongqing, the dissertion argues that it should strengthen people ' s understanding to water resources sustainable utilization for chongqing ; reform the present water rexources management system and have a try on water affairs management system in chongqing ; make effort to construction of water resources " institutions and regulations ; realize demand management, constuct save - water model society ; according to actual condition, strength water utilization constrution, then realize the balance between water resources supply and demand ; according to the idea of " control resources, conduct flow ", control water pollution, realize sanitary generation ; control soil losses and protect water enviroment ; construc t the system of flood control and diaster prevent

    重慶市的自然地理情況和社會經濟情況作了介紹之後,還分析了重慶市水資源的基本特徵,目前重慶市的水資源利用還處在傳統的開發利用階段,水資源管理體制還存在許多弊端,水的法規制建設也落後,水的供給還不能完全滿足需求,水質狀況沒有得到根本性的改善,水土流失還很嚴重,水旱災害發生的率比較高。針重慶市水資源利用的現狀,本文提出:應加強水資源持續利用的認識;改革目前重慶市的水管理體制,嘗試水務局管理體制,應加強水的法規和制建設,實現需水管理,建立節水型社會;根據實際情況,加強水利建設,實現水的供需平衡;依據「控源導流」的思想控制水污染,實現清潔生產;治理水土流失,保護水環境;建設防洪減災體系。
  2. The 3d electrons increased with the content of mn doping increasing, and the electrical property increased accordingly as the electron transport path improved. it is confirmed that all the orthorhombic perovskite phase which is formed initially at the heat treatment temperature of about 600c and thoroughly above 850c are observed in the lcmto thin film deposited on si ( 100 ) substrate by rf magneto - controlled sputtering

    確認了採用射磁控濺射法于si ( 100 )基板上生長的薄膜至多在600熱處理已開始形成晶,形成的晶全部是正交晶系鈣欽礦,提高熱處理溫,薄膜中晶含量增大,高於850后晶基本形成完畢。
  3. Compared with non - passerine, they appeared longer syllable length, higher basic frequency and more viable frequency ranges. though the amplitude modulation properties enhanced their vocal production, the type of syllable is still stable and less of variety. so the phrase consisted of syllables are comparatively few and changes of the tone are relatively less

    且表現出很強的率調制特性和特有的幅調制特性,的音節時程比較長,基較高且率變化范圍較大,所特有的幅調制特性更增加了其控聲的能力,但其音節的種類仍很單一,缺乏變化,由音節所組成的句型較少,音調變化幅不大,因此,其叫聲質量盡管較非鳴禽有所改善,但鳴禽而言卻又遠遠不如。
  4. Based on the character of ultrasonic spectrum analysis, considering the affection of the circuit responsion of checking system, coupling state, position of checking transducer, this thesis established reasonable ultrasonic spectrum analysis method. using this method, several kinds of linear spectrum ( such as phase amplitude spectrum, phase power spectrum ) were researched and discussed

    本文根據超聲波譜分析的特點,綜合考慮了檢測電路響應、耦合狀況、探頭位置等因素的影響,制定出了一套合理的超聲波譜分析方法,並用此方法幾種線性譜(如位幅譜、位功率譜等)進行了研究和探討。
  5. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈和場地特徵周期結合起來,計算分析了成層地基中單樁的橫向地震響應,得到了以下結論: 1 )上部結構慣性力樁的橫向地震響應的影響不可忽略; 2 )成層地基中的單樁的橫向地震響應主要受地震基本加速、場地特徵周期、上部結構質量的影響,隨地震基本加速、上部結構質量的增大而增大;場地特徵率越接近樁基自振率,樁基地震響應越大,等於自振率時,由於發生共振現象,樁基響應幅值最大; 3 )樁土剛比越大,樁土之間的位移的幅值越大; 4 )樁頂固接的連接方式,可以有效地降低地震時單樁的橫向地震響應。
  6. The structure of the network collaborative design is put forward. the theory of the synchronal application sharing, the technique of multi - media exchanges, the technique of instant communication, the technique of whiteboard and the technique of the management of the network collaborative design are inquired. facing some problem which exsit in the current research, such as, the method of the synchronal application sharing, how to increase the speed of the respondence of the application sharing and how to deal with the video and audio data in the multi - media exchanges, some preferable solutions are put forward

    本文綜述了網路化協同設計技術的國內外研究現狀,從研究網路化協同設計系統的體系結構入手,分析討論了網路化協同設計系統中的同步協同應用共享的原理和實現方法、多媒體交流技術、即時通訊技術、共享白板技術和協同設計系統的管理技術等網路化協同設計技術中的關鍵技術,並針目前這些關鍵技術的研究中存在的一些問題, (如同步協同共享中應用共享的實現方法,如何提高應用共享的響應速,多媒體交流中的視和音數據的處理,協同設計系統的管理等)提出了一些較優的解決方案。
  7. Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity

    通過原子上能級與光子率帶隙邊緣的位置或者光子態密,可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象,如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比率分裂等。
  8. One is the famous negotiation protocol - contract net protocol. we extend the contract net and introduce several parameters for mental state such as trust degree, conservativeness degree, cooperation frequency and activeness degree into process of announcing and bidding. we combine the bdi model of an agent with the extended contract net and implement contract net through a series of bdi - based rules of action

    研究工作主要涉及兩個方面:一是傳統的協商協議? ?合同網協議進行了擴充,將信任、穩健、合作和積極程等心智狀態參數引入到合同網協議的招投標過程中,並將agent的bdi模型與擴充的合同網協議結合,通過一系列的bdi行為驅動規則實現合同網協議。
  9. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角測量的基礎上增加角變化率及運動的離心加速等運動學參數的單站無源測量模型,並它們進行了分析和模擬;第三章分別利用角及其變化率信息定位和利用離心加速信息定位的可觀測性進行分析並得到了應的可觀測條件;第四章針傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較;第五章通過引入雷達機動目標跟蹤方法和模型,提出了利用角及其變化率機動輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要變化率和離心加速參數的獲取技術進行了研究,提出了幾種高精測量脈沖序列多普勒率變化率的方法。
  10. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角出發,提出了一種lcc諧振型恆鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低逆變,從而獲得正弦較好的輸出電壓。理論分析和實驗結果證明于阻性負載或阻感性負載,移全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低逆變器的各個開關均實現零電壓條件下的開通與關斷。
  11. In the preprocessing stage the method of user and session identification often adopt heuristic algorithm for the being of cache and agent. this induce the uncertainty of data resource. the cppc algorithm avoid the limitation and has no use for complicated hash data structure. in this algorithm, by constructing a userld - url revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors ; frequent access paths can also be discovered by further processing of the latter. experiments show the effectiveness of the algorithm. in the fourth part, this thesis bring some key techniques of data mining into web usage mining, combine the characteristic of relation database design and implement a web usage mining system wlgms with function of visible. lt can provide the user with decision support, and has good practicability

    本文演算法避免了這個缺陷,且不需要復雜的hash數據結構,通過構造一個userid - uel關聯矩陣,列向量進行似性分析得到似客戶群體,行向量進行似性量獲得關web頁面,後者再進一步處理得到繁訪問路徑。實驗結果表明了演算法的有效性。第四是本文將傳統數據挖掘過程中的各種關鍵技術,引入到web使用信息的挖掘活動中,結合關系數據庫的特點設計並實現了一個具有可廣西人學頎士學位論義視化功能的web使用挖掘系統wlgms 。
  12. Isar transmits wide bandwidth signals to obtain high range resolution. the cross - range resolution is obtained by the doppler frequency information of the target ’ s rotation

    逆合成孔徑雷達通過發射大帶寬信號獲得好的距離解析,利用目標于雷達的轉動產生多普勒率梯來獲取好的方位向分辨力。
  13. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數,我們借鑒isar的技術,通過較長時間的干積累,在多普勒域上目標進行分辨。而于編隊目標,可分為近似剛性的多目標和非剛性的多目標,所以于可以近似為剛體的編隊目標位置固定,運動方式一致,可以近似看作一個大目標,採用最小墑準則平動位的進行補償,但是大多數並不滿足剛體近似的編隊目標,由於目標在干積累時間的多普勒率近似呈線性變化,通過較短數據利用relax的時分析方法,提高了率域上目標分辨的性能。由於橫向解析取塊于橫向積累時間,所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了編隊目標的分辨,模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  14. The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves

    層內非均質性研究,通過計算不同沉積微砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微的非均質特徵;據巖性及電性特徵,將層內夾層分為兩類,統計單砂層段內夾層的個數、累積夾層厚、夾層率及夾層密,並且根據夾層率及密平面分布圖統計出每層的高值區和低值區,總結夾層分佈特徵;根據物性參數隨深的變化趨勢建立了五種儲層層內物性非均質模式,指出研究區內以a型和c型模式為主。
  15. Acr data loggers are easy to use, self powered, and pocket - sized devices that measure and record temperature, relative humidity, electric current, pressure, process signals, pulse frequency, power quality and more

    並且小型的設備可測量及記錄溫、電流、壓力、處理信號、脈波率、電源品質等。
  16. When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other

    得到了以下結論: 1 )樁的互作用因子隨率呈周期性變化,在振動率比較低的情況下,樁的橫向互作用因子也較低,當率趨近於零時,互作用因子也趨近於零; 2 )樁的互作用因子的幅值隨瑞利波入射角的變化而變化,在= 0情況下幅值最大,且隨入射角的增加,波動的周期明顯縮短; 3 )樁的互作用因子的幅值隨著樁與樁間距的增加而減小,至s d = 15時,樁的互作用因子基本趨近於0 ; 4 )在率比較低時,互作用因子幅值隨樁土比的增加而顯著增加; 5 )樁頂固接可以有效地降低群樁的橫向地震響應幅值,由瑞利波產生的群樁效應可以忽略不計; 6 )群樁中不同樁位的樁的橫向地震響應是不同的,每根樁所在的樁位其橫向地震響應有很大的影響;刀樁數的增加並不能減小樁的橫向動力響應。
  17. According to the raman selection rule and the pl measurement, it is reasonable to evaluate the quality of galnp / algalnp mqw by analyzing the relative intensity ratio of a1p - lo / to. ( 4 ) a new modified random element isodisplacement ( mrei ) model is set up to calculate the dependence between the long - wavelength optical phonon frequencies and the composition of iii - v - type ab1 - xcx mixed crystals. the second neighbor force constants are still assumed to be a linear variation with the composition, but the two first neighbor force constants can be evaluated to be a negative exponent variation with the composition, using the overlapped repulsive potential of the ion crystal combination

    通過實驗我們找到了在這些結構參數上生產gainp algainpmqw的較理想的結果; ( 3 )首次用喇曼( raman )散射方法研究了常溫下的gainp algainp多量子阱結構,除了指認出喇曼光譜中各光學聲子模外,還結合樣品光致發光譜的測量結果,分析發現喇曼光譜中alp - lo to的比可以在一定程上評定晶體gainp algainpmqw的生長質量; ( 4 )在修正的隨機元素等位移? mrei模型的基礎上建立了一個新模型,計算了ab _ ( 1 - x ) c _ x型?族半導體混晶的長波長光學聲子模率的組分變化關系。
  18. Third, a solid lubricant embedded 40cr - ptfe bearing and a bronze c86300 - ptfe bearing were prepared. the comparatively tribological tests were performed in an oscillating sliding tribotester. the conditions were a contact mean pressure of 80 mpa, an oscillating frequency of 0. 13 hz and relative humidity of

    選擇40cr - ptfe鑲嵌型軸承與高強銅合金c86300 - ptfe鑲嵌型軸承在nh - 100型重載擺動摩擦試驗機上進行比摩擦試驗,試驗條件為:承載壓強80mpa 、擺動率為0 . 13hz以及為( 60 3 ) % 。
  19. Results show that triple reflection signal and quintuple reflection signal of ytype and s type are less 12db, 16. 67 db and 11. 8 db, 17. 3 db than that of " - ' " type saw mass sensor device. experiment results show that insertion loss ( about 14db ) of the devices in center frequency is close to the theoretical value ( about 16db ) developed by p matrix representation. sensing characteristics of y type and s type saw mass sensors have been also tested and analysed in detail. ethanol and pure water mixed solution containning trace nacl is titrated into mass loading area of y type and s type saw mass sensors devices to detect their mass loading sensitivities

    本文y型和s型雙聲路saw質量傳感器件的傳感特性進行詳細測試分析,在y廠書型和s型雙聲路聲表面波器件的質量沉積區中滴定含有微量naci溶質的乙醉和水的混合溶液,以測試器件的質量沉積效應靈敏,它們分別約為2967ppm . cm丫夢g ( y型)和3一15ppm . emz /協g ( s型) ,與理論值38 . 93ppm . emz / 「 g近,拼處于國內外同型和s型雙聲路聲表面波器件的率一溫特性幾,其單聲雙聲路系數約為10一12hz / ,處于國內外同類研究先進水平。
  20. Point on the is again and again the s high segment is with of the low segment at oppositely loudly the degree objective relation for exsitting of ; also point a voiceses the way the way of high fidelity and left voice similar to signal for the way s of right voice of. equilibrium

    指在音譜的高段和低段之間在上所存在的客觀關系也指雙聲道立體聲左聲道和右聲道之間的信號的同平衡。
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