phase variation 中文意思是什麼

phase variation 解釋
(相轉變):指細菌鞭毛類型的改變。

  • phase : n 1 形勢,局面,狀態;階級。2 方面,側面。3 【天文學】(月等的)變相,盈虧;【物、天】相,周相,...
  • variation : n 1 變化,變動。2 變量,變度,偏差。3 【語言】語尾變化;變體,異體;【數學】變分,協變;順列;【...
  1. The accuracy of 3 - d surface - shape measurement by phase - measuring profilometry ( pmp ) is greatly influenced, because the variation of environmental light leads to biggish error

    摘要在運用相位測量剖面術( pmp )對物體進行三維面形測量時,由於測量現場環境光強變化而引入較大誤差,嚴重影響測量精度。
  2. ( 3 ) on interannual timescale, the changes in the sh ferrel cell lead to the anti - phase variation of the subtropical high and the circumpolar low, i. e., the antarctic oscillation ( aao )

    ( 3 )南半球ferrel環流圈的異常使繞極低壓帶和副熱帶高壓帶的強度出現了反位相的變化特徵,即南極濤動。
  3. Abstract : the phase photograph of a simple pendulum is discussed. two methods of calculating the nonlinear pendulum period is given with the phase orbital properties and the action variation

    文摘:對單擺運動相圖作了必要的討論,賦予相圖以直觀的幾何意義,並由單擺相點運動特性以及引入單擺系統作用變量兩種方法求出了單擺系統的運動周期
  4. A. thalianas were respectively introduced by ion beam with a collection of donor dna having a gradient genetic relation with a. thaliana. in vegetative phase of tl, the ratio of phenotypic variation showed no distinct difference among these transformed populations

    用離子束介導與擬南芥菜親緣關系從近到遠一系列的外源供體的全dna轉化擬南芥菜,在轉化當代營養生長期,各轉化群體的表型變異情況沒有明顯的差別。
  5. The variation of different faulting activity phase result in different structure evolution history

    不同斷裂活動期的差異性,形成了不同構造演化史。
  6. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起,有效地降低了電路的開關損耗和開關噪聲,為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時,能拓寬零電壓開關的范圍,使變換器在較寬的負載變化范圍內都能實現軟開關。
  7. On the basis of examination of more than 2000 specimens ( including types ) from 15 herbaria worldwide, the characters features of species, phonological phase, ecoloigical habit and the relation to close species were analyzed, recorded and described, the disputed species were compared, measured and counted in detail, the quantitative analysis to different characters was done through dot - map, the variation pattern of major morphology characters was analyzed and their significance for a better delimitation of the species was evaluated

    查閱或借閱國內外17個標本館近2000份標本(包括模式標本) ,描述了每個種的性狀特徵、物候期、生態習性及其與近緣種的關系,確定性狀的極性,對有爭議種的形態性狀進行詳細的測量和比較,用散點圖對個別性狀作定量研究,分析了主要外部形態學性狀的變異式樣、變異幅度及其對劃定物種范圍的價值。
  8. It is found that the climatological mean of wind speed and air - sea humidity difference are both large, the variation of wind speed are almost in phase with air - sea humidity difference, yielding much larger or smaller latent heat flux. so the ocean release the most latent heat in its own winter of the two hemispheres when both wind speed and air - sea humidity difference are large

    發現在南北兩信風區,風速和海氣濕度差的變化幾乎是同位相的,平均背景風速和海氣濕度差都較大,他們互相加強彼此對潛熱通量變化的貢獻,所以海洋潛熱損失最大是發生信風南北兩區的各自風速和海氣濕度差都較大的冬季。
  9. In the region north of brazil, although both wind speed and air - sea humidity difference have dramatic variations, the variation of latent heat flux is just ordinary in magnitude. the reason is that the variations of wind speed and air - sea humidity difference are out of phase with each other so that they decrease each other greatly

    在巴西以北的暖水區,盡管海氣濕度差的變化和風速的變化都較大,但二者在區域內總是反相,彼此削弱了對潛熱通量變化的貢獻,所以該區潛熱通量的變化振幅較小,最終由風速的變化主導潛熱通量的變化。
  10. Phase variation of symbiotic - pathogenic bacteria xenorhabdus and photorhabdus

    昆蟲病原線蟲共生細菌的型態變異
  11. Phase variation of the symbiotic - pathogenic bacteria xenorhabdus spp. and photorhabdus spp

    昆蟲病原線蟲共生細菌的代謝產物
  12. The variation of minute bubbles is monotonic, whereas there is peak for the case of phase splitting drop

    但它們對短波選擇的程度隨粒子半徑變化是不同的,小氣泡是單調的,而分相液滴會有極值出現。
  13. A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal

    鑒別器,鑒頻器一種將輸入信號的某一特徵,如頻率或相位轉變為幅度變化裝置,其變化大小因信號與標準或參考信號的不同程度而異
  14. The variation of db magnitude attenuation and phase delay of reflection is uniformly proportional to distance along the line toward the direction of reflection, where the phase delay is 360 degree per wave length, the db attenuation per meter is twice the one way db attenuation per meter of forward or backward wave

    沿傳輸線之反射,即反向傳播與正向傳播電壓沿傳輸線之相量比,其相位落後及分貝衰減沿反射方向之變化則正比于線長,相位落後為每半波長三百六十度,每米之分貝衰減為正向波或反向波單程每米之分貝衰減之兩倍。
  15. So far the mechanism and the effects of developing flow, condensate film roughness, property variation in the gas phase, system pressure, and sorts of noncondensable gases and its contents on condensing are not adequately understood

    而且,系統壓力、蒸氣過熱度、蒸氣流速和不凝性氣體種類及其含量是影響蒸氣冷凝的重要因素,這使得蒸氣冷凝換熱現象大大復雜化。
  16. Based on experimental research on electrical property of waterflooded rock we have found that variation of salinity has much effect on rock resistivity, and it makes that relation curves of complex resistivity and in - phase resistivity of rock under single frequency with water saturation are characteristic of u - style curve, just like relation curves of waterflooded rock resisitivity with water saturation, but salinity variation has little effect on rock dispersion property

    摘要通過水淹巖石巖電特性的實驗研究發現,地層水礦化度的變化,對巖石電阻率幅值的影響較大,致使單一頻率下的巖石復電阻率幅值和同相電阻率也會象常規電阻率一樣,隨著含水飽和度的變化,出現" u "形曲線,而相對而言,地層水礦化度對巖石頻散特性的影響較小。
  17. On the basis of piv measurement of the gas solid velocity field, the size and the numbers of particles are measured by newly developed image processing software. the results are identical with the variation of the factual size of particles. by the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of circulating fluidized beds ( cfb ) riser

    在piv測速系統基礎上,通過二次開發的圖像識別軟體,實現不同工況下各截面顆粒粒徑分佈的測量,測量結果基本反映出實際顆粒粒徑變化,證明了該方法的可行性,進一步獲得了循環流化床稀相區顆粒粒徑分佈特性。
  18. The inter - annual variation of chilling damage in spring in southern china is characterized by phase and extensive space synchronization

    南方春季低溫冷害年際變化有著明顯的階段性和群發性。
  19. Based on the ncep / ncar reanalysis products, the sea ice concentration data and the observation rainfall data in china, the seasonal, intraseasonal and interannual variations of the atmospheric circulation in the southern hemisphere ( sh ) are systematically analyzed together with their influences on east asian summer monsoon ( easm ). the major conclusions are summarized as follows : ( 1 ) in the lower level of the troposphere, the semi - annual oscillation ( sao ) is most active along 40 s and 65 s in the extratropics of the sh. over these latitudes, the variance percentages of sao exceed 70 %, and the anti - phase variation of the sea level pressure ( slp ) between the two latitudes is primarily caused by their sao components

    利用ncep ncar再分析資料、南半球海冰密度資料及中國臺站降水資料,本文系統分析了南半球大氣環流的季節、季節內和年際變化特徵及其對東亞夏季風的影響,主要結論歸納如下: ( 1 )對南半球熱帶外大氣環流而言, 40 s和65 s是低層大氣準半年振蕩最為顯著的兩個緯帶,在這兩個緯帶上,半年波的貢獻都超過了70 ,二者季節變化的反位相主要體現為半年波分量的反位相。
  20. The character of surface radiation and energy expended over soil temperature variation is that the temperature variation at surface, 5cm depth and 10cm depth are approximately sine curve on clear and cloudy day while this way the temperature variation at 20cm depth shows small extent anti - phase variation and the temperature under 50cm is no diurnal. in contrast, the temperature at 5m, 10cm and 20cm shows linear decrease and the soil - surface temperature is concaved on rainy day

    地表輻射和能量耗散反映在土壤溫度變化上的特徵是晴天和陰天地表、 5cm 、 10cm的溫度變化表現為準正玄曲線, 20cm深處的溫度變化呈現出幅度很小的反位向變化, 50cm以下地溫已不存在日變化特徵;雨天5cm 、 10cm和20cm的溫度呈線性遞減,地表溫度表現出由降雨引起的凹陷現象。
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