frequency match 中文意思是什麼

frequency match 解釋
頻率蝶
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  • match : n (一根)火柴;〈古語〉(從前大炮發火用的)火繩,導火線。 light [strike] a match 擦火柴。 a safe...
  1. The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated

    利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系,系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線,通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。
  2. An under estimation of the hearing effects by the low frequency noise could be happened. that is to say, even if the a - weight sound level is small, the low frequency noise may annoy to listener by the different ways from the high frequency noise. so it is necessary to understand psychoacoustics in order to make noise quality evaluations that match the subjective experience of the purchaser

    同時應用主觀評價方法?成對比較法( paircomparisonstatisticalevaluationmethods )對不同家用空調器噪聲進行主觀評價試驗,並與客觀評價結果進行了對比,結果表明:人主觀響應(煩躁程度)與各心理聲學評價指標之間均具有很高的相關性,相關系數一般均大於0 . 9 ,而與a計權聲壓級之間的相關系數只有0 . 78 。
  3. It fly snow in the palm : the this line has to contract for the playing cards of match prop, the magician contracts playing cards after, becoming this kind of paper flower, instigating with a poker, seeming to be a full day of snowflakes, will strengthen many stage effects. the video frequency plays to show

    掌中飛雪:此道具為紙牌縮小的搭配道具,魔術師將紙牌縮小之後,變成了這種紙花,用一張撲克牌扇動,好像滿天的雪花一樣,會增強許多的舞臺效果。視頻演示:零售價格28元10個裝
  4. ( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized

    ( 8 )進行基於所開發的電控補氣系統上的催化器與電控系統的匹配研究,當控制系統調節空燃比在一定范圍按照一定頻率進行波動時,可以提高催化轉化器的轉化效率;通過控制氧傳感器的比較電壓,可以控制催化轉化器的工作窗口,實現排放污染物中, hc 、 co 、 nox轉化的最優匹配。
  5. Precision improvement of digital frequency counter with match strobe signal

    用選通門匹配方法提高計數式頻率計的測量精度
  6. The design process consisted of computer design by circuit simulation software integrate with electromagnetic simulation software, fabrication of microstrip bpf 、 lpf 、 the match circuits, cavity and test. when rf frequency is 91 ~ 97ghz, lo frequency is 47ghz, power is 10 dbm. the best conversion loss of the 2 and 4 sub - harmonic mixer is 13. 5 db and 23. 5db which is shown in the test

    實測表明,在本振為47ghz ,功率10dbm ,測試射頻帶寬為91ghz 97ghz時,二次與四次分諧波混頻器變頻損耗最優處分別為12 . 7db和23db 。最後對實驗結果進行分析並提出改進措施。
  7. Design of impendence match for high frequency power amplifier of mine mobil communication system

    礦井移動通信系統高頻功放環節的阻抗匹配設計
  8. The research results are controlled source which has linear or nonlinear variabe frequency scan function and the seismic instruments which match with it, and the method of small group intervals, small offset, much more channels, short array length, high - frequency receivers are applied during the link of data acquisition, and that the techniques of the refraction static correction, the noise suppressing, the high - resolution velocity analysis, the wavelet length compression, the wavelet zero - phase, and the prestack migration should be applied emphasizedly during the link of data processing and interpretation

    研究表明,對于城市活斷層的抗干擾高解析度淺層地震勘探,在數據採集環節應採用具有線性或非線性變頻掃描功能的可控震源和與其相匹配的地震儀器,以及小道間距、小偏移距、多接收道、短排列和高頻檢波器接收的工作方法;在數據處理與解釋環節,要重視折射靜校正技術、噪聲壓制技術、高精度速度分析技術、子波壓縮技術、子波零相位化技術和疊前偏移技術等的應用。
  9. 2. we design a configuration of frequency - doubler according to the optimum focus condition and the cavity stability condition | a + d | < 2 and optimize it based on " mode - matching " and " optimum coupling ". 99. 96 % of optical impedance - match efficiency and over 95 % of spatial mode - matching efficiency are achieved eventually by using t = 10 % of input coupler in our experiment

    ( 2 )根據最佳聚焦條件和腔的穩定性條件( | a + d | 2 )對四鏡環型倍頻腔進行了設計,並分別從「模式匹配」和「最佳輸入耦合鏡透射率的選擇」兩方面著手對腔進行優化,在我們的實驗中採用10的輸入耦合鏡,獲得阻抗匹配效率為99 . 96 ,空間模式匹配效率高於95以上的模式。
  10. In civil engineering applications, for example harbor - constructing and bridge - building, need information of sea bottom. in military engineering applications, identification of sea bottom types are vary important for match field location, low - frequency sonar distance forecast, and choosing the location for submarine

    在民用方面,修築港口,建設跨海大橋;軍用方面,匹配場定位、低頻遠程聲納作用距離預報、潛艇沉底隱蔽地點選擇等方面都有廣泛的應用。
  11. It can automatically match rotational speed generator, electromagnetic rotational speed sensor and electromagnetic turbine flowmeter. moreover it can adapted measured signal that is 1v ~ 300v voltage and 1hz ~ 2500hz frequency

    能自動匹配測速發電機、電磁式測速傳感器和電磁渦輪流量計,適應電壓峰峰值從1伏以下至300多伏、頻率從1hz以下至2500hz以上的被測信號。
  12. The article also includes the work as follows : 1. finished designing the hardware collective circuit and its controlling program, and using the dissynchronous fifo technique and independent clock circuit to solve the problem of high - accuracy regular - frequency sampling and the match system speed

    論文還完成了以下工作: 1設計現場診斷儀的硬體採集電路及相應控製程序。應用異步fifo技術和獨立時鐘電路,解決了高精度定頻率采樣以及系統速度匹配問題。
  13. The products are primarily used in 1. f. t, therefore appropriate t. c types shall be used to match ferromagnetic cores. if not, peak frequency will shift

    一、本品主要用於中周配套,因此選用電容器之t . c (溫度補償)類別應與瓷芯相匹配,如不匹配,易造成高低溫諧振飄移。
  14. This feature perfectly combine the frequency in acoustics level and the temperament in music semantic level, we use the cosine distance of this feature to represent the similarity of two music clips, then we design a group of algorithms that is inspired from the thought of edit distance and dynamic programming. they segment the feature vectors into groups at first, then through group similarity match, group recurrent detect, merge recurrent group and structure label joined algorithms to complete the music structure label task. because this is a really new field of research and no good method of evaluation had been finding, we propose a new evaluation method and the results of the experiments show that it is a good method

    然後設計了一組源於編輯距離和動態規劃思想的音樂結構分析演算法,首先將特徵向量分組,然後經過組相似匹配、組重現檢測、重現組歸並和自動標注四個前後銜接的環節實現了音樂結構的自動標注,較好地實現了將音頻形式的音樂自動標注為表示音樂結構的三元組列表形式,由於這是一個新的領域,目前還沒有比較好的量化評價方法,本文提出一種新的評價方法,並用它來評價結構分析的結果,取得了較好的效果。
  15. Because the different stiffness match of front and rear suspension is very influencing to the ride comfort, optimal model of ride comfort is developed, regarding the rms of driver ’ s acceleration as the objection, regarding the stiffness of front and back suspension as optimal variable, regarding quiet flexibility 、 dynamic flexibility 、 frequency and dynamic load as nonlinear constraints. by matlab program and using sqp, the optimal match of front and back suspension ’ s stiffness is achieved, this optimal model consider not only request of quiet 、 dynamic flexibility 、 frequency and damp, but also security of run and peace of road, it is closer to the fact than other models which only consider partial restriction

    由於前後懸架垂直剛度的不同匹配對汽車行駛平順性影響較大,論文建立以駕駛員垂直加速度的均方根值作為汽車行駛平順性優化目標值、以前後懸架垂直剛度作為優化變量的優化設計模型,並輔以靜撓度、動撓度、頻率、動載荷等非線性約束,使用序列二次規劃法,利用matlab編制優化程序,求得前後懸架垂直剛度的最優匹配值;此優化模型不僅包含動靜撓度及頻率和阻尼的限制,還考慮到汽車的行駛安全性和道路友好性,比文獻報道的只考慮部分約束的優化模型更切合實際情況。
  16. The related issues to zero medium frequency including digital match filter and orthogonal sampling are studied. the research makes a basis for the development and realization of cdma hardware system

    對採用的零中頻技術、數字匹配濾波器、正交采樣所涉及的問題進行研究,為硬體系統的研製打下理論基礎。
  17. The change of the revolution of compressor by using the frequency conversion technology while the outside burthen alters, enables that refrigerant discharge changes along with the alteration of head load, and therefore refrigerating capacity will change respectively so that refrigeration system can match the variety in heat load

    在外界負荷變化的時候通過變頻技術改變壓縮機的轉速,使製冷劑流量隨著負荷的變化而變化,從而改變系統的製冷量,達到製冷系統與負荷變化的匹配。
  18. This findings knew in the absorber compound material the aluminum oxide powder content must only 5 %, also the match constitutive property protects the curtain level to be allowed to enable the electromagnetic wave absorption, the camouflage, the frequency width to achieve the best potency

    本研究結果得知吸收體復合材中氧化鋁粉末含量需僅5 % ,且匹配結構性護幕層可以使電磁波吸收、遮蔽、頻寬化達到最佳效能。
  19. This magic is in keeping with to perform at the satge or the party, the magician controls a light ball arbitrarily, matching with various hua shi4 s technique and music result to attain super and strong magic result, if think " solo " in the dancing party to be also groovy a recruit. sees a magician stretch hand toward once the air grasp, a little very red light of fire has already been grasp in hand medium ; after rowing a circle in the sky pass the light of fire another again hand, after namely two hands mutual fast commutation light of fire, if can match with beautiful of body language, perform will very good see. the video frequency plays to show

    這個魔術適合在舞臺或宴會上表演,魔術師將一個光球隨心所欲地控制,配合各種的花式技巧及音樂效果達到超強的魔術效果,若是想在舞會中" solo "也是很帥的一招。只見魔術師伸手向空中一抓,一點紅紅的火光已被抓在手中在空中劃個圈圈后再將火光傳給另一隻手,之後即兩只手互相快速的交換火光,若能配合優美的肢體語言,表演將會非常的好看。視頻演示:
  20. Five low - demand bus routes were cancelled in 1999 and early 2000. during the period, the service frequency of 19 hong kong island routes and 12 cross - harbour routes was reduced to match with the passenger demand

    在1999年和2000年年初,巴士公司一共取消了五條需求量過低的路線,並在同一期間,減少了19條港島線和12條過海線的班次,以配合乘客的需求。
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