波峰 的英文怎麼說

中文拼音 [bōfēng]
波峰 英文
[物理學] wave crest; peak; ridge; hump; ridge of wave; spike; wave front波峰焊接 [半] wave soldering
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 峰 : Ⅰ名詞1. （山的突出的尖頂） peak; summit 2. （形狀像山峰的事物） peak-like thing Ⅱ量詞（用於駱駝）
  1. Where a trough and crest coincide we get the total amplitude zero.

    在波峰與波谷重合之處，總振幅實際上為零。
  2. The component gate opens at the beginning of the peak.

    在波峰開始時，門電路打開。
  3. According to the variation, features of the integrand, the values of peaks and troughs are taken out and formed a slowly convergent series, and the repeated averaging scheme is performed to calculate the limit rapidly and accurately

    根據被積函數的變化特點，將波峰和波谷值抽取出來組成慢收斂序列，利用重復平均法快速而準確地求出其極限值。
  4. These leds light sources are not only adjustment and uniformity but also smaller, less expensive, required less power, generated less heat. especially, the pattern of the construct both aggregate and desegregate in design was to realize different light intensity illumination on same biology sample at the same time. the selectivity, work efficiency and experiment veracity have been improve greatly

    該系列光源除了具備光強可調、分佈均勻優勢外，還具有波長、波峰寬適宜，以及小巧、價廉、能耗低、發熱少等特點，尤其是該生物光源在設計時採用的單元組裝模式，使得不同強度的光照能夠在同一批生物樣品上實現，大大拓寬了生物實驗的可選擇性，提高了工作效率和實驗準確性。
  5. Blaze wavelength. the peak wavelength in the typical efficiency curve for a ruled grating. also, for a holographic grating, the most efficient wavelength region

    閃耀波長.常規光柵的典型效率曲線的波峰.對全息光柵而言，則是指最有效的波長區域。
  6. If intermittent small scale breaking is occurring, the average energy density is limited by conditions near the long wave crests.

    如果間歇性的小尺度破碎正在發生，平均能量密度就要受到長波波峰附近狀況的限制。
  7. The recorder trace is a series of inverse peaks.

    記錄器掃跡是一系列相反的波峰。
  8. A new damping estimation method, the secant line method, was presented, that is based on the distance of neighbor peaks and valley of oscillation

    摘要提出利用相鄰波峰和波谷之間距離估計阻尼比的割線方法。
  9. For example : the high frequency digital oscilloscope, the appropriative debugging, tests computer, eprom read - write, the multimedia computer video frequency signal generating device, the digital camera, dmm, weatherometer, the wave ridge welding machine and so on

    如：高頻數字示波器專用調試測試電腦eprom讀寫器多媒體電腦視頻信號發生器數碼相機數字萬用表器件測試老化臺波峰焊機等等。
  10. Under the assumption of linear ocean waves, and in the light of the theoretical framework about the probabilistic distribution of wave characteristics ( sun fu 1988 ), several probabilistic distributions of wave characteristics that is necessary for the estimation of breaking probability and whitecap coverage are derived. afterwards, the models of breaking probability and whitecap coverage are set up with these distributions in addition to the kinematical criterion

    在線性海浪假設下，基於孫孚（ 1988 ）關於三維海浪要素統計分佈的理論框架，具體給出二維海浪波峰處質點水平速度和表觀相速的聯合分佈等分佈函數，在此基礎上，根據運動學判據，分別建立起風浪破碎率和白浪覆蓋率的理論模式。
  11. No. 1 market share in japan for lead free soldering equipment as n2 / air reflow, n2 / air wave soldering system & spray fluxer. we also can provide soldering chemical materials

    全日本銷售和佔有第一，無鉛製程設備如氮氣?空氣回焊爐，氮氣?空氣波峰焊爐等。我們也提供無鉛錫膏，電子化學材料等。
  12. The results show that the influences of duration and amplitude of stress wave on spallation process of rock under stress wave loading are important ; and stress wave with different waveforms is characteristic of different stress values and different stress loading ratios during the same period of time, which brings about the comprehensive effect when difform stress wave is loaded to medium

    通過對不同應力波延續時間、不同應力波峰值和不同應力波波形下應力波誘發層裂過程的數值分析，對應力波反射誘發層裂的規律和機制進行探討。
  13. The wider range of the directional distribution of wave energy, the shorter of the mean crest lengths and the wider range of the distribution of crest directional angles. the crest height and crest length show a high relativity while the crest heights are low and become independence at very high crest height

    獲得了波峰長度的統計分佈、波峰長度與波峰高度的聯合分佈、波峰高度與波峰長度相關性、波峰長度與波峰方向角的聯合分佈以及波峰在一個大面積海域中的出現概率等結果。
  14. Statistics of wave crests with different directional spreading parameters and different directional functions are obtained and discussed. jonswap spectrum and the directional function suggested by mitsuyasu, donelan and wen respectively are employed in the analyses. statistical distribution of wave crest characteristics such as crest length, crest height, and directional angles based on the above - mensioned numerical simulation of 3 - d random waves are analyzed

    以jonswap譜為頻譜，選取光易型方向函數（含三個參數） 、 donelan方向函數以及文氏方向函數等不同的方向函數進行模擬，對得到的波峰形式進行比較，分析了方向函數對波峰長度統計值的影響。
  15. Solder bar is made from high purity metal. by means of strict qualitg control the oxide and metallic and non - metallic impnrities and effectively minimized, the available high purity solder bar is with uniform and glazed surface good wetting and spreading ability after molten bright joint and minimum oxide residue after soldering. our product is suitable for wave and handwork soldering with high quality requirement

    本公司生產焊錫條採用高純度金屬原料，在嚴格品管條件下，有效控制氧化程度以及金屬和非金屬雜質含量，焊錫條表面均勻光滑，純度極高，熔化后流動性好，潤濕性極佳，焊點光亮，氧化渣物極少發生，適用於高品質要求的各種波峰焊和手工焊。
  16. Used in protect gold fingers when pcb spray - tin through tin stove as well as ware - soldering

    用於印刷線路板（ pcb ）過錫爐噴錫和波峰焊過程中遮蔽保護金手指。
  17. Pwm converter has low efficiency at light loads and high amplitude harmonic. on the other hand, the control circuit and filter for pfm are much complex

    Pwm調制模式的spic在輕載下效率較低，控制脈沖諧波峰值較大; pfm控制電路較為復雜，后續濾波器設計困難。
  18. The width of the central peak is twice as great as the width of the lobes along-side it (generally referred to as side bands).

    中心波峰的寬度是它毗鄰波瓣（一般稱作旁瓣）寬度的兩倍。
  19. Peak pressure investigation of exploding wave influenced by interfaces in shallow - layer water

    界面對淺層水中爆炸沖擊波峰值壓力影響的研究
  20. Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing

    文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據
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