線對數 的英文怎麼說

中文拼音 [xiànduìshǔ]
線對數 英文
demand pairs
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. The results showed in the paddy field the bacteria were predominated, in the dry land the proportion of fungi and actinomyces was distinctly higher than the other two kinds of soil, in the woodland abundant species of basidiomycetes were found ; the natural degradation speed was low, with the degradation the number and composition of microorganisms changed regularly ; when the c / n ratio was adjusted to 25 " ? 1, the degradation remnant ratio reduced 10. 67 % than the control

    結果表明，水田以細菌為主，旱地中真菌和放線菌數量最多，林地中有大量的高等擔子菌；秸稈自然降解較慢，土壤微生物也隨著降解的進行而呈現一定的變化規律；當調節c / n比為25 ： 1時，秸稈的腐解殘留率比對照組下降10 . 67 。 2
  2. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  3. This momentous decree came as a great beacon light of hope to millions of negro slaves who had been seared in the flames of withering injustice

    這項重大的宣告對數百萬在苛酷的不公平烈焰下驚懼的黑人而言，不啻是一線偉大的希望之光。
  4. In the bed load layer, the stream - wise particle velocity profile follows the log - law, and the average is 8. 2u *

    在推移區內，顆粒的縱向速度沿垂線接近對數分佈，平均運動速度為8
  5. The scielltific computational theories and methods on bird strike to the windshield of aircraft have been systematically studied and summed up in this thesis, such as fem comptltational principles and procedures to elastic dynamic problems under the conditions of small and non - linear finite deformation, 3d viscous elastic constitutive theory and incremelltal expression under the consideration of the rate effect of non - metallic materials like the aircraft windshield, and the numerical compatational principles and key constitutions for impact - contact dynamic subjects

    2 、系統學習並歸納總結了鳥體撞擊風擋結構問題中的科學計算理論與計算方法。按照鳥撞問題數值計算方法逐步深入的思路，系統總結了小變形結構動力學有限元數值計算方法、有限變形的幾何非線性有限元數值計算方法、粘彈性體非線性形變的本構物理關系；對于實施復雜結構有限元動力學計算的載荷增量方法提出了對newmark差分的改進以及進行材料與幾何非線性數值計算的細致步驟。
  6. The residence time of distribution and froth height in the downcomer were measured. the tracer used was 10 wt % sodium chloride solution. the residence time of distribution curves in a downcomer were measured by using the tracer technique

    所用示蹤劑是10 （質量百分比）的nacl溶液， rtd曲線採用了脈沖響應技術來測量，用計算機實時採集系統對數據進行採集。
  7. In this research, the plant esterase of wheat and - ethanoic acid naphthalene ester were taken as materials to inspect the relation between the wheat esterase and the organic phosphorus, ten linearity equations were established which expressed the esterase vigor and the organic phosphorus density logarithm with the change of the numerical value of ultraviolet resorption, and the monotony range and the extremum of the function were confirmed

    摘要本研究以小麥為植物酯酶的酶源， -乙酸萘酯為底物，考察了小麥酯酶與有機磷農藥之間作用的關系，建立了10個以吸光值變化表示的酶活性與有機磷農藥濃度對數之間的線性方程，並確定了函數的單調區間和極值。
  8. The lower curve marks the exclusion threshold for data pairs.

    下部曲線標志出對數據對的排除域。
  9. The fourth chapter introduces the theory of fractional brown movement ( fbm ). the image texture of turning workpiece is analyzed using fbm model. after abstracting the texture character, the cutting tool wear status can be determined according to fractal dimension and average slope of the fitting curve of the logarithm power spectrum

    第四章採用分數布朗運動（ fbm ）的基本理論，對切削工件表面紋理的圖像進行分析，提取紋理特徵參數，根據分形維數和圖像上對數功率譜的擬合曲線的平均斜率來判斷刀具的磨損狀態。
  10. Based on the equal strain consolidation model of sand drain, and neglecting the well resistance and the vertical drainage consolidation, a layered model for the nonlinear consolidation of sand drain, which accounts for the geostatic pressure varying along depth and the relationship between the average viod ratio and the logarithm of average effective stress, is presented

    摘要基於砂井等應變固結模型，考慮初始有效應力沿深度變化，忽略井阻和豎向排水固結的影響，應用平均孔隙比與平均有效應力的對數關系，建立砂井非線性徑向排水固結的分層計算模型，並求得常荷載作用下的徑向排水固結解析解。
  11. Gunter drew a number line in which the positions of numbers were proportional to their logs

    甘特畫了一條數線，數字的位置與其對數成比例。
  12. Secondly, in this paper, the four typical uwb antennas of tem horn antenna, log - periodic antenna, biconical antenna and helical antenna are theoretically analyzed and the uwb antenna design methods are generalized and discussed

    其次，本文對tem喇叭天線、對數周期天線、雙錐形天線和螺旋天線四種典型的超寬帶天線進行了理論分析，總結並討論超寬帶天線的設計方法和手段。
  13. 4 the spectrum of highly ionized cu and ge was investigated by means of the beam - foil technique. by comparison with other experimental data we determined 42 energy levels of cu and 13 energy levels of ge. for the spectrum without experimental data for comparison, they are determined by isoelectronic sequence

    摘要4我們採用束箔光譜方法測量高離化態cu和ge束的光譜線，與文獻中的實驗數據相對照，確定了42條cu的譜線和13條ge的譜線，對于無實驗值可對照的譜線，利用理論值和實驗值進行等電子序列證明。
  14. Diagnostic characters for the recognition of species include the presence or absence of pectoral fin, the position of dorsal fin origin, gill opening, anus, nostril opening and eye, the cirri present or not, the dentition type, the body coloration, and the head pores or lateral line etc

    一般依據胸鰭的有無或發達程度，背鰭起點、鰓孔、肛門、鼻孔和眼等的相對位置，頜的發達程度和頜上是否具須，齒的形狀和排列方式，身體的斑紋，以及頭部和體側的側線孔數目等進行鑒別。
  15. Growth can be represented by a linear or log linear trend.

    增長可以用線性或對數線性趨勢來表示。
  16. An important aspect of the stress strain data in fig. 78 is the linearity of the log-log plots.

    圖78中應力-應變數據的一個重要情況是在雙對數座標上圖線的直線性。
  17. Linear logarithmic sweeps and burst operation modes

    線性和對數掃描及突發工作模式
  18. Based on the previous theory, the fdtd method is used to analyze practical antennas, which include dipole antenna, microstrip antenna, log - periodic antenna and broadband resistance loaded monopoles. the particular problems that occur in the calculating of vary type antennas are discussed. the cross - section field of microstrip line and two - conductor line are analyzed, and the effect on the numerical result arising from the incident cross - section mesh size is discussed

    在前面理論的基礎上，將fdtd用於振子天線、微帶天線、對數周期天線、電阻加載振子天線等各種天線的計算中，對各種不同類型天線計算中所遇到的特殊問題進行了詳細的討論，並分析各種開放場傳輸線如微帶線、平行雙線等橫向場分佈，討論了入射網格橫向截斷區域的大小對計算結果的影響。
  19. Without the central switch a lot of channels and tracks are shared by many users, the cost of the channels is reduced and the utilization factor of them is improved. user can call others by dialing the number, and the dialing is simple and quick

    本文給出了有限用戶的呼損率公式和有限用戶多通道共用系統的通道配置方法，並可根據實際話務量、系統用戶數、呼損率配置共用繩路數和中繼線對數。
  20. Note : there preparatory pairs for the cable with 100 pairs and above, but the number of pair is aside individually. the qualified of cable should be not less than nominal pairs

    注： 100對及以上的電纜有預備時，其數量不超過標稱線對的1 % ，且最多不超過6對。預備對單獨放置。電纜中合格線對數不少標稱線對數。
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