正流式 的英文怎麼說

中文拼音 [zhēngliúshì]
正流式 英文
orthoflow
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  1. On the basis of many related data from abroad, this thesis is an attempt to simulate the hydrodynamic characters of abyssal gravity cages under the action of currents and waves

    本論文是從這一點出發,根據國外有關抗風浪網箱資料,在試驗室中模擬深水重力潛網在水、波浪作用下的受力特性。
  2. Cryptic species have been found in a wide range of marine organisms ; with majority of them are benthic invertebrates. in contrast, marine holoplanktons are thought to have lower diversity and slow speciation due to their strong dispersal potential. this paper reviewed studies on cryptic species and speciation in marine holoplankton. based on findings in 38 studied taxa, it was concluded that : 1 ) cryptic species are pervasive in marine holoplankton, suggesting holoplankton speciation was more active than previously thought ; 2 ) current morphospecies diversity is untenable to reflect true species diversity in marine holoplankton ; 3 ) geographic isolation may facilitate cryptic speciation of marine holoplankton. however, contribution of allopatric speciation is still questionable ; 4 ) ecological speciation may be the prevailing speciation mode in marine holoplankton. cryptic speciation in marine holoplankton is paradoxical, because rapid speciation under strong gene flow is countertuitive. solution of this paradox will help us gain deep insights of marine speciation and biodivesity

    隱種廣泛存在於各類海洋生物中,尤其是底棲無脊椎動物.然而,海洋終生浮游生物由於具有較強的擴散能力,往往被視為生物多樣性低、物種形成慢.本文就海洋終生浮游生物隱種與物種形成的研究作一綜述.基於研究的38個種類,結果表明: 1 )海洋終生浮游生物普遍存在隱種,其物種形成要比想象得快; 2 )由於引種的廣泛存在,形態種生物多樣性無法反映海洋終生浮游生物真的物種多樣性; 3 )地理隔離有助於海洋終生浮游生物隱種的形成,但異域物種形成的作用仍值得商榷; 4 )生態物種形成很可能是海洋終生浮游生物物種形成的主.海洋終生浮游生物強基因下快速的物種形成有悖于生物進化常理,解決該悖論將有助於我們對海洋物種形成和生物多樣性的理解
  3. Taking the silicon diode as an example, through an analysis of the diode ' s current - voltage characters and the avometer circuit, the writer finds out the reasons for the differences in the amount when measuring the positive direct current equivalent resistance with different ohm grades

    摘要以硅二極體為例,從二極體的伏安特性及萬用表內部電路的角度,分析了用指針萬用表的不同歐姆檔位測量二極體的向直等效電阻時,其值緣何不同。
  4. Battledore and shuttlecock especially popular in asia and europe today, badminton became a full competition sport at the olympic games in 1992

    今天,羽毛球運動在亞洲和歐洲尤為行,它已經在1992年的奧運會中成為比賽項目。
  5. Last december, they also formally established the supreme master ching hai international association in their country, whereupon they began to broadcast master s teachings on the radio each day to convey the message of the quan yin method to their compatriots

    貝南訊西非貝南同修已在首都科都努cotonou成立了共修中心及經書通處,而且也于去年十二月成立清海無上師世界會。
  6. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變器採用占空比擴展有源箝位高頻脈沖直環節電路拓撲,由占空比擴展有源箝位高頻脈沖直環節電路與dc ac逆變橋級聯而成,前級採用電壓型pwm前饋控制技術,后級採用三態dpm電滯環控制技術。
  7. 4 the average power of a non sinusoidal periodic current is equal to the sum of powers of all its fourier series components

    弦周期電電路的平均功率等於其傅里葉級數展開所有分量的功率之和。
  8. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋豎井泄洪洞應用於高水頭、大泄量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導洞改建,對高水頭( 252m ) 、大泄量( 1400m ~ 3 s )條件下旋豎井中的水運動特徵進行了比較全面的測量,包括空腔形態、徑向速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水總摻氣量估算方法,為導洞排氣方案的設計提供了參考依據;六、在高水頭、大量條件下,豎井空腔段下部速很高,盡管水螺旋運動引起的離心力可以確保井壁壓強保持壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。
  9. I put a lot of work into making it fast, but in the end, python isn t fast enough to do what needs to be done : processing strings character by character in an interpreted language just cannot be made fast

    可是一旦更改了控制臺交互,如果程序出錯,將不會以常方顯示python追溯事件。 andrew kuchling使用一個很好的curses程序頂級框架解決了這個問題(請參閱
  10. Now it has been found the recruitment and homing of circulating endothelial cells ( cecs ) or their progenitors ( ceps ) released from the bone marrow is very important in tumor angiogenesis. we detected the cecs and ceps in 64 pb ( peripheral blood ) of tumor patients. we found the amount of cecs and ceps is higher in tumor patients than normal controls

    本項目應用細胞法對64例腫瘤患者及15例常人,外周血中的循環血管內皮細胞( circulatingendothelialcell , cec )以及骨髓來源的循環血管內皮前體細胞( circulalingendothelialprecursor , cep )進行了檢測,證實了外周血中cec / cep的存在,發現腫瘤患者cec / cep含量高於常對照組,提示腫瘤患者體內存在血管內皮及其前體細胞的動員。
  11. The new modified formula not only meets with our experiment result, but also can explain the examples of relationship between the speed and the current ripple frequency of dc motors in the literature

    新的修不僅能夠解釋文中的實驗結果,也能滿足以往文獻提出的直電動機轉速與脈動電頻率之間的關系。
  12. The paper makes simulation for each type of electro - hydraulic regulating system of turbine. the results of simulation show that for the francis and kaplan turbines the contradiction between regulation time and pressure increasing can be solved by logical chosen of feedback adjustment coefficient and control cost - weighting matrix. for tublar turbine the dynamic matrix pi control scheme can effectively solves the difficulty of speed stabling of this type turbine

    本文對各種機組調節系統進行模擬,結果表明,對于混和軸轉漿機組,通過反饋校系數和控制權矩陣的確選擇,可以解決調節時間和水擊壓力上升的矛盾;對于貫機組,提出了動態矩陣pi控制方案,可以較好的解決此類機組轉速難以穩定的問題。
  13. The dehydration time is square of the droplets diameter so the small diameters of the droplets can cut down the drying time then reduce the height of the drying chamber. to the combined spin - flow pressure spray drying, the diameters of droplets are small and the dehydration rate is higher so keeping the qualities of the dried products we can increase the speed of the inlet wind and reduce the temperature of the outlet wind thus can improve the evaporation intensity of the drying chamber and the average energy utilization of the drying equipment

    因霧滴的脫水時間與其直徑的平方成比,減小液滴直徑有利於縮短乾燥脫水時間,可有效降低乾燥塔的高度;由於旋組合壓力噴嘴霧化滴徑的減小,脫水速度明顯加快,在不影響乾燥物料性質的前提下,適當提高進風溫度,同時有效地降低排氣溫度,有利於提高幹燥塔的蒸發強度,也有利於提高幹燥設備的平均能源利用率。
  14. In order to improve measurement precision and display fidelity of the instrument, three new methods of nonlinear calibration of thermal instruments, which are based on intelligent control theory, are presented in this paper, such as nonlinear compensation of zr02 oxygen measurement instrument using bp nn, nonlinear calibration of temperature measurement sensors using cmac nn and nonlinear identification of throttle flow meter using ga. these methods prove to be not only simple but also effective

    火電廠熱工儀表普遍存在非線性特性,為了提高參數測量的準確度和儀表顯示的精確度,基於智能控制理論,文中提出了熱工儀表非線性校的新方法: bp神經網路補償氧化鋯氧量計非線性特性的方法、 cmac神經網路校測溫傳感器非線性特性的方法、遺傳演算法辯識節量儀表非線性特性的方法。
  15. This style of dress ( is in fashion ) now

    這種款的女裝,現在行。
  16. Results the new synthesis benzene nitrogen mustard glucoside derivate is much lower toxicity to normal cellsd and much higher toxicity to 7721 cells compared with nitrogen mustard, meanwhile it induce the apoptosis of 7721 cells by the fcm

    結果新合成的葡萄糖苯氮芥衍生物對常細胞毒性較小,對7721有明顯的細胞毒性,且通過細胞儀顯示其誘導細胞凋亡。
  17. Then the local weighted mean method is used to register the image distortions. this method can not only successively register the local geometric distortions but also fit for the infinite length image registration. images are registered and exported with sequential subsections

    然後以局部加權平均的表面擬和方法對失配圖像做幾何校,該方法既有效地校了遙感圖像中的局部幾何畸變,又適合於針對無限長圖像進行數據的分段配準輸出。
  18. In order to study the regeneration mechanism of dpf in detail, we still need a mathematical model of the channel unit, which present temperature field and the soot reaction rate of the channel. finally, it points out the influences of various factors to the regeneration process by computing the numerical solution of model under different boundary conditions and geometry parameters, such as the initial temperature, the gas flow rate, the oxygen concentration, the sediment quantity and the wall thickness of the filters, and so on. in this way, the paper provides theoretical guidance for optimization design of the dpf

    首先研究了干凈壁過濾體的加熱特性,然後在加熱和燃燒理論的基礎上建立了微粒捕集器再生過程的數學模型,並對模型進行了數值計算,得到了捕集器內部的三維溫度場分佈以及溫度梯度分佈,結果與實驗值吻合較好,驗證了模型的確性;為了詳細的研究微粒捕集器的再生機理,建立了孔道單元數學模型,得到了孔道內的溫度場分佈和微粒反應速率分佈;最後,通過求解模型在不同邊界條件和不同幾何參數下的數值解,分析了各種因素對再生過程的影響,如過濾體初始溫度、過濾體內氣動速率、氧濃度、微粒沉積量以及過濾體壁面厚度,為微粒捕集器的優化設計提供理論指導。
  19. 2 > on the basis of the experimental excavating robot, several energy saving controls with multi function valve control are investigated in this paper, which include negative control, positive control and load sensing control. because of some defaults of these controls, this paper proposes some improvements on them, which have been proved to be effective in experiments

    2 、以試驗型挖掘機器人為對象,對多種閥控節能控制進行了深入研究,其中包括負量控制、量控制和負荷傳感控制,針對這些節能控制方的不足提出了多種改進方案,並分別進行了試驗驗證,效果良好。
  20. The circuit topologies family of voltage mode ac - ac mode ac / ac converters with high frequency link include eight circuit topologies, such as single forward mode, interleaved - forward mode, push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. the circuit topologies family of current mode ac - ac mode ac / ac converters with high frequency link include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controll is introduced

    電壓源交?交型高頻環節ac ac變換器電路拓撲族,包括單、並聯交錯、推挽全波、推挽橋、半橋全波、半橋橋、全橋全波、全橋橋八種電路;電源交?交型高頻環節ac ac變換器電路拓撲族,包括單四象限功率開關、推挽、半橋、全橋四種電路。
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