較高頻率 的英文怎麼說
中文拼音 [jiàogāobīnlǜ]
較高頻率
英文
upper frequency-
The methods of direct measurement with low precision such as frequency and time interval methods and the methods of indirect measurement with high precision such as beat frequency method, dual mixer time difference method and frequency difference multiplying method are supported on the platform. the fundamentals of each method are studied. the quantization error is analysed and the illustration is given for each method
該平臺支持直接頻率和時差法兩種較低精度的測量方法以及雙混頻時差法、差拍頻率法和頻差倍增法高精度的簡接測量方法，本文研究了各種測量方法的原理，對各種測量方法的量化誤差作了分析，並給出具體的實例。Rebecca oxford ' s strategy inventory for language learning was employed to study six types of learning strategies : memory strategy, cognitive strategy, compensation strategy, metacognitive strategy, affective strategy and social strategy and their effects on the reading, listening, writing, cloze, grammar and oral test performance of nmet
研究結果表明，在各項策略中，補救策略、元認知策略、認知策略使用頻率相對較高，而記憶策略、情感策略和社會策略使用頻率較低。學習策略與高考成績有顯著的正相關。( 2 ) study the character of audio signal. analyze the zero - crossing rate and mfcc. a mean mel coefficients is proposed, it can be used to recognized different audio signal
通過對mfcc系數進行分析，均值mfcc系數作為音頻特徵，採用動態時間規整識別演算法，能夠對單一音頻進行識別，對已有數據源進行測試，有較高的識別率。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
在對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，水的法規制度建設也相對落後，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，水旱災害發生的頻率比較高。針對重慶市水資源利用的現狀，本文提出：應加強對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，相應加強水的法規和制度建設，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。The time harmonics can be considered as voltages of higher frequencies applied to the windings.
時間諧波可以看作是施加在繞組上的較高頻率的電壓。In wavelength conversion based on four - wave mixing ( fwm ) in soa, balance efficiency can be obtained in larger range when increasing saturation power of the optical amplifier and decreasing the saturation power of spectral hole burning and carrier heating
而在基於soa的四波混頻（ fwm ）波長轉換中，在提高光放大器飽和功率的同時減小光譜燒孔（ shb ）和載流子加熱（ ch ）飽和功率可有效提高較大頻率間隔處的轉換效率，並保持其在較大頻率失諧范圍內的效率均衡。Partial chromosomes happened abnormally during pollen mother cells meiosis, which included chromosome chain, chromosome loop, lagging chromosome and chromosome unequal distribution
麗? 2號花粉母細胞在減數分裂期染色體行為發生了異常，出現較高頻率的染色體鏈及少部分的染色體環和落後染色體。Experiment result proved, relative to complicated structure and hig h request for laying wiring of zvs series resonant full - bridges, push - pull class - e amplifier is expected more suited for high frequency high - power output ability relatively, which is suitable for popularizing
實驗證明，相對于結構復雜，布線要求較高的全橋串聯諧振逆變器，推挽式雙e類放大器具有更高頻率和較大功率的輸出能力，適于推廣一。Proved with the mixing rate using parameters tw and r ^ it showed that large amplitude and high frequency could greatly enhance the mixing rate. but at large st, the rate of attenuation appears to be in periodic fluctuation at the range of low frequency, so there must be some best partnership of amplitude and frequency
用參數t _ w 、 r _ （ 15 ）表徵的混合效率表明：總的來說大振幅、高頻率有利於混合，但在st較大的低頻率區中衰減速度會有周期波動的特性，存在最佳的頻率振幅配對。Based on the dds technology, the waveform generator first stored data in high speed ram, then used dac to synthesize waveform by the data. many waveforms could then be generated easily. besides, the wave generator could get high performance on frequence resolution and stability, phase continuum, relative bandwidth etc. the dds technology was widely used in frequence synthesis field
基於dds技術的波形發生器以高速存儲器作為波形數據查找表、通過高速d / a轉換器對存儲器的波形進行合成，可以靈活產生多種波形，同時具有頻率解析度高、頻率穩定性好、頻率轉換快、相位連續性好以及相對帶寬較寬等特點。The results show that there is significant difference between the solution considering and neglecting the radial displacement at lower frequencies but they are identical at higher ones
結果表明，在低頻范圍內考慮徑向運動的解與簡化解有較大差別，而在較高頻率下兩者基本吻合。The first, the effect of the sizes of coupling slots in a coupling double gap cavity on the cavity characteristics is studied through simulation computation of three dimensions electromagnetic field and analysis of equivalent lumped element circuit. it is concluded by the research that, in lower frequency band, bigger coupling slots in a coupling double gap cavity are beneficial to raising the characteristic impedance and lowering the frequency of it mode
第一，採用三維電磁場模擬計算方法和集中元件等效電路法研究了耦合雙間隙腔中耦合槽尺寸對諧振腔性能如何影響等問題，得出了重要結論：在較低頻率波段，耦合雙間隙腔中開大耦合槽有利於提高模的特性阻抗，降低模頻率。Many new words emerge as the times require and most of them are used frequently in mass media
隨著社會文化的變遷和進步，許多英語單詞應運而生，並以較高頻率出現于大眾傳媒。For the clouds over xi ' an region, the quantity calculations of the backscattering cross sections for various reflection mechanism of cloud are dealt with. the results calculated show that the major contributions for the backscattering cross s ection come possibly from average cloud diameter, clear - air and humidity turbulence and also from distributions of cloud particles, especially, at higher frequencies
再分析了雲的後向散射機理，計算了西安地區雲的後向散射截面；表明影響雲的後向散射截面的主要因素為雲滴平均半徑、大氣濕度湍流及雲粒子分佈，在較高頻率時更顯著。Code - division multiple - access ( cdma ) technology has become the main technology studied in the personal communication service ( pcs ) recently because it has lots of benefits, such as large system content, high voice quality, easy frequency scheme, low cost of the net making and so on
碼分多址技術因其具有系統容量大、語音質量高、頻率規劃簡單、建網成本較低等眾多優點，已成為近年來個人通信業務中研究的主要技術。At last we introduce the realization of all the parts, the problem in the circuit design and the measured data. the results show that the designed system has met the requirement. in this dissertation, direct digital synthesis technology has been used in the phase - locked frequency synthesizer, which can make full use of the characteristics of direct digital synthesis technology such as flexible output wave shape and continuous
本課題將直接數字式合成技術用於鎖相頻率合成器中，該方法將直接數字合成的特點，如輸出波形靈活且相位連續、頻率穩定度高、輸出頻率解析度高、頻率轉換速度快、輸出相位噪聲低、集成度高、功耗低、體積小等與鎖相環路的頻帶寬、工作頻率高、頻譜質量好等優點有機的結合起來，從而在寬帶的條件下實現了比較好的雜散性能和相噪。Scientists from universities in hawaii and florida say that they have taken videos of dolphins chasing schools of fish while emitting2 very low - frequency sounds
夏威夷與佛羅里達高校的一些科學家表示，從他們已拍攝到海豚追捕魚群的錄像，並且發現海豚在捕食時發出較低頻率的聲音。Avalanche diode high order frequency multipliers are able to transform microwave signals to millimeter wave signals in single stage by fierce nonlinear inductance effect in avalanche phenomena. it has obvious advantages in high order frequency multiply with high efficiency and is a good approach to provide high quality millimeter wave source
雪崩高次倍頻器能夠將微波信號單級高次倍頻至毫米波頻段，它倍頻效率高、輸出功率較大，具有高頻率穩定度和低相位噪聲的特點，能夠為毫米波應用提供優質的毫米波信號源。" we tried to prepare the aircore meander type thin film inductors to increase the frequency that can be used. we prepared them with masks and by magnetron spllttering. wthollt the magnetic material we got large inductance by properly choosing the size parameter. the change of the size parameter does not influence the frequency that can be used, so we can improve the quality factor in the same time
為了得到在更高頻率下適用的薄膜電感，在本實驗中我們嘗試製作了柵極型空心薄膜電感。我們採用掩膜法，通過磁控濺射制各樣品，在不加磁性材料的情況下，適當選取線圈形狀參數來得到較大的電感，由於形狀參數的改變不影響樣品的適用頻率，因而也能達到增大品質因數（ q值）的目的。We also find that behind an on - line intimate tie with high interaction frequency, there exists a high probability of finding a person with a high degree of centrality within friendship networks in the real world
從研究結果指出，一般而言，網下的互動型態和網上相似，並且我們發現，在網上情感連帶高頻率的互動者，其網下高情感網路中心性也有較高的機率。分享友人