頂正波 的英文怎麼說

中文拼音 [dǐngzhēng]
頂正波 英文
vertex positive wave
  • : i 名詞(人體或物體的最上部) crown; peak; top Ⅱ動詞1 (用頭支承) carry on the head 2 (從下面拱...
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : 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...
  1. Beauchamp was thunderstruck. " who, then, has so correctly informed you ?

    尚猶如五雷轟, 「那末,是誰來這樣式地通知你的呢? 」
  2. Mountain wave cloud also known as lenticular cloud, i. e. lens shaped was observed on the hilltop of lantau on 12 august 2003. the picture was taken at around 2 : 20 p. m. that afternoon at the hong kong international airport looking south - southeast towards lantau with a setting of 1 160s, f8. 0 and iso - 100 speed. at the time winds were light to moderate southerly, with showers just passing over lantau an hour earlier

    相片顯示大嶼山的山蓋著一層狀雲也稱為莢狀雲,因其形狀如豆莢照片是在二零零三年八月十二日下午二時二十分左右拍攝,地點在香港國際機場朝著東南偏東的方向,用度菲林快門為1 160秒和光圈f8 . 0 。
  3. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動系數、轉矩電流比等方面進行了全面的分析與比較,模擬研究和實驗結果表明,當反電動勢的平寬度小於107電角時,採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上,更有效地抑制電磁轉矩脈動。
  4. For the bldcm which has a general crest width of the back - emf waveform, two kinds of torque ripple conditions when drived by sine - wave current as well as by square - wave current are deduced based on the mathematical models. in addition, a comparison is carried out between these two conditions, which indicates that sinusoidal current driving is more favorable to minimizing the torque ripple when the crest width of the back - emf waveform is less than a certain value

    闡述了抑制齒槽轉矩措施對反電動勢形的影響,利用無刷直流電機的數學模型推導並比較了任意平寬度梯形反電動勢在和矩形兩種電流驅動下的電磁轉矩脈動情況,得出在梯形寬度減小到一定數值后採用弦電流驅動更有利於減小電磁轉矩脈動。
  5. Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method

    研究認為: ( 1 )黃河河口口門逕流潮汐區域並非持續保持淤積狀態,在特定的來水來沙、邊界條件和海洋動力條件下,該區域可以處于沖刷狀態; ( 2 )從河口泥沙沉積分配的過程來看:三角洲與濱海區泥沙的沉積變化趨勢是基本一致的,各部位的泥沙沉積比例變化基本呈動狀態,且三角洲與濱海區泥沙的沉積比例與來沙量密切相關,基本成比關系; ( 3 )在口門處,影響泥沙沉淤的因素主要集中在潮汐托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等,本報告主要對口門加寬,口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: (一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式,據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 )本項研究首次論證了河口三角洲岸線動態平衡的概念,並建立了黃河河口來沙量與造陸面積的相關關系,得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 )本項研究首次提出了河口泥沙優化調控的概念,並對其宏觀優化調控模式進行了初步探討。
  6. The player, who is reported to own half of his rights, did not actually join porto until january this year as he wanted to help gremio back to the top - flight in brazil - which they did

    這位年輕天才據報道直到今年一月才式加入而圖的,此前他一直擁有自己的一半所有權,因為他曾想幫助格雷米奧隊重新回到巴西的尖水平他們做到了。
  7. Then on january 17, 2004, while preparing to attend group meditation at the oklahoma center, i perceived a ray of extremely bright light shooting up from the top of my head, as quick as a flash, to an area full of magnificent golden palaces radiating bright light next to an emerald green lake, while countless flowers spoke in an exotic, melodious language similar to the celestial music

    2004年元月17日,當我準備前往小中心參加共修時,一道強光剎時從我的頭射出,快如閃電,瞬間投射到一處金殿林立的地方,那些金殿宏偉華麗光彩奪目,旁邊有一個碧蕩漾的翡翠湖。
  8. And then one by one they got up and stood, and went a - weaving around the ring so gentle and wavy and graceful, the men looking ever so tall and airy and straight, with their heads bobbing and skimming along, away up there under the tent - roof, and every lady s rose - leafy dress flapping soft and silky around her hips, and she looking like the most loveliest parasol

    隨后他們一個個挺直身子,在馬上站立了起來,圍著那個圓圈兜圈子,那麼輕盈,那麼微蕩漾般地起起伏伏,又極其典雅。男子顯得又高又挺又靈巧,他們的腦袋在篷帳下飄逸地浮動。那些女士,一個個穿著玫瑰花瓣似的衣裳,裹住了她們的下身,輕盈地絲光閃閃地飄動,看上去象一把一把最可愛的小陽傘。
  9. I also carried some research on the bragg grating composed by alternate left - handed material and right - handed material. in the reflective spectrum of the bragg grating, there exists bragg top zone ( with reflectance almost 100 % ). however, i found that there exists some narrow transmission bands located in the bragg zone under some conditions

    另外,這篇論文里還要講到負交替的材料組成的布拉格光柵也有很反常的現象,在光柵的反射譜上,我們不僅可以觀察到和傳統布拉格光柵相類似的布拉格平區,我們還可以看到在一定條件下,布拉格平區中會有一個很窄的反常透射區,也就是說只有很窄區域的長可以透過光柵,而且中心長是100 %透過。
  10. The main original work includes : 1. the interaction between an integral pile and a uniform visco - elastic soil layer with viscous damping or hysteretic damping is theoretically studied, and the pile response to a harmonic load is obtained in a closed form and used to define complex stiffness at the pile head. semi - analytical solution of the velocity response in time domain subjected to a semi - sine wave exciting force is also given

    主要工作包括: 1 、在考慮樁周土三維動條件下,對滯回阻尼、粘性阻尼單層均質土中樁土縱向耦合振動問題進行了解析研究,分別得到樁位移、速度頻域響應以及復剛度的嚴格解析表達,以及半弦脈沖激振力作用下樁時域響應半解析解。
  11. ( 6 ) scientifically understanding the influence of crude nitrogen regulating valve fluctuation on the top of crude nitrogen i tower to oxygen content and purity of nitrogen fraction, so as to attain the goal of adjusting oxygenerator operation according to the above mentioned law. it has the significant guidance to regulate the operation of large - scale oxygenerator and worth being popularized

    ( 6 )科學認識進粗氬塔部粗液氬調閥動對氬餾分含氧量和氧純度的影響,從而可以在本規律的指導下達到確調整制氧機工況的目的,對大型制氧機工況的調整具有很強的指導性,極具推廣價值。
  12. On top of the staff is an eagle, which is of polish design and is quite correct

    旗桿的端有個鷹,這是蘭的標志而且十分確。
分享友人