漂移期 的英文怎麼說

中文拼音 [biāo]
漂移期 英文
drift episode
  • : 漂動詞[方言] (事情、帳目等落空) fail; end in failure
  • : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
  • : 期名詞[書面語]1. (一周年) a full year; anniversary 2. (一整月) a full month
  • 漂移 : 1 (漂流移動) be driven by the current; drift about2 [電子學] drift; shift; shifting; shunt runn...
  1. We live a scant three score and 10 years, far too short a time to witness evolution, continental drift or long - term environmental changes

    我們的平均生命僅有70年,實在短得不可能目擊演化、大陸或長的環境變遷。
  2. The results show that in the case of no wind the oil film moves southwestward along with the tidal current, its area increases and thickness decreases, and the port is not polluted during ebb tide ; a part of the oil film is blocked by the northern jetty, and stays in the port during flood tide

    計算結果表明,在靜風情況下,落潮間油膜隨落潮流向西南方向,面積擴大,厚度減小,港區未受油污的影響;漲潮間油膜受北導堤的阻擋,部分油污留在港區。
  3. The detecting accuracy of the beam drift would be improved, as a high performance acoustooptic modulator modulates the frequency of the laser beam drift signal far away from the power frequency, the double power frequency and high frequency noises

    具體包括: 1 .利用聲光調制器將光束量信號調制到遠離工頻及其倍頻干擾和高頻噪聲的頻帶段,以提高光束量的檢測精度。
  4. In view of the regression characteristic and the configuration maintenance demand of the regional coverage satellite constellation, the constellation configuration is optimized using the linear relations between the semi - major axis and inclination and the rates of change of the ascending node right ascension and phase, which enhance the long - term stability of the satellite constellation configuration, simultaneously the sub - stellar and the phase are controlled through changing the deviations of the semi - major axis and the inclination

    摘要針對區域覆蓋衛星星座的回歸特性和構型維持需求,利用軌道半長軸和傾角與升交點赤經和相位角變化率之間的線性關系來優化星座構型參數,提高衛星星座構型的長穩定性,同時通過協同控制軌道半長軸和傾角量來實現區域覆蓋星座構型維持。
  5. Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm. the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle. the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational. they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time. thus, the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated

    文摘:為了保證靜電監控器的導航定位精度,需要了解靜電陀螺的姿態誤差特性,建立相應的誤差方程.本文採用球面三角形原理推導了導航定位誤差與陀螺姿態誤差的關系式.模擬結果表明,由初始定向誤差引起的經度誤差和距離誤差的時間特性是周變化的;由陀螺引起的經度誤差和距離誤差是隨時間發散的.因此,初始定向誤差和陀螺的影響不能忽略,必須對其進行估計和補償
  6. The distribution of all the genera and species ( including new taxa and new data by present research ) of the world are summarized, according to the history of continental drift and the result shows that empoascini originated in the oriental region in pangaea 145maago. zoogeographical analysis of all the taxa in china shows that most of the genera and species of empoascini are distributed in the oriental region, which is identical with the geographical distribution worldwide, i. e. most taxa distribute in the tropical and subtropical zone. phylogenetic analysis of 40 chinese genera of empoascini with one outgroupikranewa is presented in this paper

    在生物地理及區系方面,總結了世界已報道及本研究新發現單元共計88屬1183種在世界各大動物地理區的分佈情況,結合大陸學說的有關知識,認為小綠葉蟬族應起源於東洋區,起源時間在聯合古陸時(約145ma以前) ;分析了中國已報道及本文新發現該族共40屬263種在中國動物地理區劃的歸屬,結果表明,中國小綠葉蟬族的種類分佈以東洋區占優勢,明顯多於古北區,這與世界該族昆蟲大多分佈於熱帶、亞熱帶的結果相一致。
  7. By means of temporary stability of combining drift coefficient of angle sensor and through missile rotating two - position measurement, measuring rotating angle between the two positions by vertical sensitive axis x, and sensing the changes of ground velocity component between the two positions by horizontal sensitive axis and z, the position of the component is determined to realize the azimuth alignment before launch of tactical missile

    角敏感元件系數具有短穩定性,通過轉彈前後兩位置對組合的測試,垂直敏感軸計測轉彈過程中兩位置之間的轉角,兩水平敏感軸敏感計測地速分量在前後兩位置的變化,由此計算出部件當前所在方位,從而實現戰術彈射前的方位對準。
  8. By means of controlling accurately temperature of f - p cavity used in the frequency - stabilizing system of laser, the frequency stability of laser is significantly improved. especially the long - term unidirectional frequency shift is essentially overcome

    從實驗結果,我們得出將作為頻率標準的f ? p腔精密控溫與對該腔不控溫對激光器振蕩頻率進行鎖定的結果相比較,清楚看到短穩定性有一定提高,重要是對作為穩頻標準f ? p腔精密控溫,消除了由於溫度變化引起的頻率慢
  9. As a teenager he found himself in trouble with the law, later drifting from job to job until, while working as a bouncer, his temper got the better of him and he attacked two patrons who were giving his colleagues a hard time

    少年他發現自己在法律上有很多麻煩,以後從工作對工作直到,當工作作為愛說大話的人,他的脾氣戰勝了他,並且時他攻擊了給他的同事,困難時的兩位贊助人。
  10. General methods of testing the performance of industrial process measurement and control instruments. long duration drift

    工業自動化儀表通用試驗方法.長
  11. Our patented technology enables automatic density / temperature scanning and eliminates long - term drift allowing you to change the temperature and continue measurement without time delay

    我們的專利技術能自動掃描密度/溫度和消除長,允許在改變溫度后繼續測量,無須延長時間。
  12. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵,特別是得到了一些暴時與以往不同的季節特性;第一次給出了海南地區的電離層等離子體特徵,發現等離子體暴時擾動在三個方向上有內在的聯系,得到了電場變化曲線;研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別;通過對強磁擾動事件間的參數變化特性分析發現,在磁暴恢復相間海南地區電離層底部存在一個電子密度非常大的高密度區,高密度區底部電子密度梯度隨高度急劇增加,該區域的水平尺度可達100公里以上時間尺度約為2小時,連續出現過三次,這是一個在海南從來未發現的新現象;研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  13. Traditional inertial mechanized - platform uses velocities to damp the system attitude to improve the precision of attitude, when the system acceleration is small. referring to the idea, this paper designeda damp kalman filter in strap - down attitude heading reference system ( ahrs ). the new method makes use of 3 - d accelerometer ' s measurements to estimate the system attitude, which is measured to compensate attitude errors. because the acceleration affected the precision of fiher directly, the fuzzy adaptive system was presented. the fuzzy logic inputs are three accelerations and the output is to control the measurement noise covariance matrix. simulations and experimental results prove that the damp algorithm can damp most of schuler oscillation and foucauh oscillation, so that to assure the filter convergence and efficiently improve the precision of strap - down ahrs

    在系統機動性不強的情況下,傳統的平臺內阻尼演算法將系統本身的速度信息通過阻尼網路加到系統中,達到提高姿態角精度的目的.將這種平臺內阻尼的思想引入到捷聯慣性航姿系統中,在系統加速度較小的情況下,利用加速度計的輸出估計系統姿態角,通過卡爾曼濾波的形式補償系統姿態誤差.由於加速度的大小直接影響濾波器精度,本文設計了模糊自適應卡爾曼濾波演算法,根據三軸加速度計的輸出調整內阻尼量測誤差方差陣,從而避免了濾波器的發散.模擬和實驗驗證,內阻尼演算法可明顯抑制舒勒周振蕩和傅科周振蕩,避免了系統姿態,有效提高了捷聯慣性航姿系統的精度
  14. To avoid the actuator, a capacitor load being charged up by the drift current of the amplifier, a secondary feedback from the output of the amplifier has been used and expected result has been gotten

    針對驅動器輸出電流造成的壓電作動器(容性負載)電荷積累,文中引入了抑制驅動器電流的反饋環節,取得了預的控制效果。
  15. With the development of few - cycle pulses ( fcp ), the phase shift of the optical carrier with respect to the pulse envelope becomes non - negligible

    隨著周量級激光脈沖的產生,脈沖載波及包絡之間的相對相位逐漸成為不容忽視的問題。
  16. The integrated amplifier guarantees a minimal temperature drift, long term stability, and reproducability of the measured values

    集成在傳感器中的放大器保證了最小的溫度,同時具有長的穩定性,和好的測量重復性。
  17. Circuit board through optimization design and continual perfection of production technology, has reduced temperature drift, has improved anti - interference property, ensure products stability and reliability during long - term operation

    線路板經過優化設計及生產工藝不斷完善,降低了溫度提高了抗干擾性能,確保產品在長工作中的穩定性和可靠性。
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