有效周期 的英文怎麼說

中文拼音 [yǒuxiàozhōuqī]
有效周期 英文
effective period
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 有效 : effective; valid; efficacious
  1. Though the study on the long - term of no - tillage and ridge culture in this dissertation, the research results are as follows : 1 ) nt can change the wee terrain and change the conditions of air and water, which leads to the seasonal fluctuation of the main kinds of microbes such as bacterica, foungi, azotobacter and cellulose decomposing bacteria

    3 ，聚土壟作（包括冬水壟作、兔耕壟作、免耕廂作）的平均增幅為156 2 ，有機質和速效氮也有同樣的趨勢；全磷和速效磷、全鉀和速效鉀隨作物的種類、生長周期、水分和氣溫的變化而變化。
  2. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  3. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  4. Ods possesses some characteristics of some characteristics and oltp systems of the data warehouse, it is the data " who faces the theme, integrates, or close to present, constantly changeably at present " because dss is peculiar : ca n ' t fully understand the demand ; the demand change is great ; implement time long cycle, but the customer demands to become effective and wait for the characteristic soon at the time of making bi systematic scheme of the enterprise layer, should consider on the issue that there is a great deal of, in a situation that the fish and bear ' s paw must hold concurrently, make the choice

    Ods （ operationaldatastore ）是數據倉庫體系結構中的一個可選部分， ods具備數據倉庫的部分特徵和oltp系統的部分特徵，它是「面向主題的、集成的、當前或接近當前的、不斷變化的」數據。由於決策支持系統特有的：不能充分了解需求；需求變動大；實施周期時間長，但客戶要求見效快等特點。在制定企業級的bi系統方案時，就會有諸多問題要考慮，在魚和熊掌不能兼得的情況下，做出選擇。
  5. The promotion started tuesday at dominick ' s and applies to purchases made between tuesday and oct. 2. the coupons can be redeemed at a sears store until oct. 23

    此次促銷活動將于本周二在多爾尼克食品店正式開始，截止於10月2日，而優惠券則在西爾斯的有效期則截止於10月23日
  6. The traditional method is that sampling 20 equidistance discrete voltages to calculate the virtual value. to gain the virtual value, we firstly average their square values, and then extract it

    傳統的計算有效值的方法是利用一個周期內等距離散的20個采樣點的瞬時值進行求解，通過計算它們的均方根值來得到有效值。
  7. The expression pattern of these enzymes suggests that an estrous - cycle dependent and region - specific pg synthesis in the bovine oviduct may be required for a successful reproduction

    這些酶的表達方式表明一個成功的繁殖需要在牛輸卵管內有一個獨立而局部特效pg合成的發情周期。
  8. Combining with practice of china ' s uranium ore heap leac hi ng, this paper proposes main ways and suitable technologies in the fields of emp hasizing feasib ility research, adop - ting strengthened technologies, improving equipment le vel, op timizing control technological factors and developing application range and so o n, which include adopting acid - curring and ferric sulphate - tric kle leaching process, bacteria heap leaching, countercurrent heap leaching, sele cting advanced material of heap bottom, developing large mechanized heap constru ction equipments and methods, popularizing drip i rrigation distributing solution, optimizing heap leaching process parameters, as we ll as developing recovery equipments suited to heap leaching, etc, in order to i n crease leaching rate, reduce heap leaching period and achieve more economic bene fits

    結合我國鈾礦堆浸實際，在重視堆浸可行性研究、採用強化堆浸技術、改進堆浸裝備水平、嚴格工藝條件及拓寬堆浸的應用范圍等方面提出一些有效途徑及適用技術，包括採用拌酸熟化-高鐵淋濾浸出、細菌堆浸、制粒堆浸、逆流堆浸，選用優質底墊層材料，研製大型機械化築堆方法和設備，推廣滴灌式布液，優化堆浸工藝參數，以及開發堆浸相配套的回收設備等，以提高浸出率、縮短堆浸周期，獲得更大的經濟效益。
  9. The results of simulation indicated speech signal processed by the optimum algorithm presents obvious periodicity in time domain, and effect of the formant is removed or restrained effectively in frequency domain

    處理后的語音信號在時域上表現出明顯的周期性特徵，同時在頻域上也觀察到聲道的共振峰結構影響得到消除或有效的抑制。
  10. The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological

    分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象，依據astm標準及國際通用文物保護研究方法與評估準則相結合，通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定，及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響，對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。
  11. After comparing in detail the current popular 24 idss or ids prototypes from the aspects of the granularity, methods, and tune of detection, data - collection, and data - processing, we find out the problems in the most of the current idss that they are generally platform dependent, inefficient in detection methods, lack intelligent in data analysis, inextensible as the network configurations changed or upgraded, and inadaptive when the new attack methods emerge

    本文首先從數據來源、數據處理周期、數據收集和分析、入侵檢測方法、系統運行平臺等七個方面對當前較具有影響力的24種入侵檢測系統或原型進行了詳細的比較，分析了現有入侵檢測系統在系統平臺的異構性、系統檢測方法的效率、入侵數據分析的智能性、面臨新的入侵方法時的適應性和網路配置發生變化時的可擴展性等方面的不足和問題。
  12. Second, for the reasons of the profits of the momentum or contrarian strategies, we find : ( 1 ) momentum or contrarian strategies exhibit an interesting pattern of seasonality in china stock market different from january effect found in mature market, which seems to exist a link with the cycle of disclosure of accounting information for fiscal year

    其二，就中國股市中慣性與反向效應之潛在成因而言， （ 1 ）中國股市的慣性與反向效應表現出特殊的季節效應特徵，似乎更有可能與上市公司目前的年報報表披露周期所形成的平均循環長度相關聯。
  13. Thus this paper puts forward the dynamic time series period analysis and prediction model. it combines the basic principle of the stepwise regression period analysis to the multiplayer - transfer method. it can not only effectively select every latent period of a time series, but also take advantage of the selected latent periods to make a long - term prediction

    因此本文提出了動態時間序列周期分析預測模型，它是將多層遞階方法與逐步回歸周期分析的基本原理相結合，使之既可以有效地選取時間序列的各個隱含周期，也可以利用所選取的隱含周期作較長的時間預測。
  14. The life cycle of a check begins when the drawer writes a check and delivers it to the pages.

    支票的有效周期始於出票人開好支票，交給受款人之際。
  15. With the application of fabric simulation technique, textile designation becomes quite easy and effective ; designer will be released from multifarious and trivial labor and have more time or energy to engage in conceiving production ; you can obtain realistic textile pictures and need not to weave out it actually, this will lead to a great many benefits : shorten produce period rapidly, reduce running expense sharply, fasten enterprise ' s reaction to marketing, make convenient for information communication and producers will free from motiveless manufacture. along with wild employment of electronic business, producers can utilize internet to put out newly products, do business and intercommunication

    織物模擬技術的應用不僅可以提高紡織產品的設計效率，將設計人員從繁雜的勞動中解放出來、使之能夠將更多的時間和精力投入到產品構思及開發中去，而且由於不必實際生產出樣品就能夠得到具有真實感的設計效果圖，生產周期大大縮短，產品開發成本大幅降低；同時加快了企業對市場的反應速度，企業、供求之間的信息交流更加便捷、高效，消除了生產過程中的盲目性，增加了企業的競爭力。
  16. The iterative learning control has been raised as a new control concept. by correcting the current control command using the previous system error data instead of the exact system parameters, iterative learning control can effectively suppress the vibration of the highly periodic system

    迭代學習控制不需知道系統的具體動力學參數，只要系統運動具有一定周期性，它便能利用系統先前的控制經驗和輸出誤差來修正當前的控制信息，從而達到良好的控制效果。
  17. The causes are discussed from aspects of oil - gas source beds, trapping and storing space, oil - gas migration channel and thick proofing layers, oil - gas maturity stage and allocation of effective trapping stage, suggesting the searching of primary oil - gas pool of the cambrian and lower ordovician at the relatively shallow layers and surrounding places with faults developed

    從油氣源層、圈閉與儲集空間、油氣運移通道與巨厚隔層、油氣成熟期與圈閉有效期配置等四個方面探討了未獲油氣之原因，提示在滿加爾坳陷腹地，相對較淺部位及周邊斷裂發育部位尋找寒武系和下奧陶統的原生油氣藏。
  18. Therefore, because the number of samples is less, but in order to successfully get orders, the printing surface treatment ( signs nameplate, etc. ) can not be lax, the usual choice of either silk screen, and pad printing or thermal transfer, but for a small number of sample products or the case is a long life cycle, cost, efficiency in my company ' s products, printing effects, the cost has obvious advantages

    因為是樣品所以數量少，但為了順利拿到定單，表面的印刷處理（標志、銘牌等）又不能馬虎，通常的選擇不外乎絲印、移印或熱轉印，但針對樣品或少量產品而言則周期長、成本高，我公司產品在效率、印刷效果、成本方面具有明顯優勢。
  19. Traditional editorial - publication procedure can no longer fulfill the time and effectiveness demands to the journals. academic journals have to revolute this publication model and decrease the time period for publication in order to better serve the knowledge renovations

    隨著社會高度發達對信息傳播要求的提高，傳統的編輯出版流程已經越來越不能適應期刊出版對時效的要求，學術期刊只有通過變革已有的出版模式，縮短出版周期，才能更好地為知識創新服務。
  20. Based on data collected from east china sea, the waves are calculated and analysed statistically, therefore as obtained the relation between wave height and significant period as well as average period

    摘要根據實測數據對我國主要漁區（東、黃海）的波浪進行了統計分析，得出適用於該海區的有效波高與有效周期及有效波高與平均周期的統計關系式。
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