magnitude range 中文意思是什麼

magnitude range 解釋
星等范圍
  • magnitude : n 廣大,巨大;偉大,重大,重要性;大小;積;量;【數學】量值;【天文學】(恆星的)等,等級,光度...
  • range : vt 1 排列;整理(頭發等)。2 使歸類[班、行、隊];把…分類。3 〈用被動形或反身形〉加入,站住…的一邊...
  1. The method of wing shape optimization of space shutlle has been developed with penalty function approach in which the objective function is the mass of the wing and the constraints are the hypersonic re - entry flight cross range, lift / drag ratio, and subsonic flight lift / drag ratio, the margin of the longitudial static stability and the magnitude of the horizontal landing speed etc

    摘要介紹了在滿足高超音速再入橫向機動航程,高超音速再入飛行時的升阻比,亞音速進場飛行時的升阻比,縱向靜穩定性裕度和水平著陸速度等飛行性能設計要求下,用罰函數法尋求使航天飛機機翼質量為最小的外形優化方法並給出了算例。
  2. Simultaneously cross - linked and quaternized 4 - vp - co - nbuma was also investigated as humidity sensing materials and showed good linearity, high sensitivity, good high stability at high humidity and high temperature, and durability to organic solvent, etc. sensors based on 4vp - co - buma ( vp / buma = l / l ) with crosslinking and quaternization reaction of 17 hours exhibited a change of three orders of magnitude ( 104 ~ 107 ) in impedance over the range of 95 % rh ~ 30 % rh, showing high sensitivity, and little hysteresis was observed

    元件具有響應線性度好,靈敏度高,濕滯小、高溫高濕穩定性好、耐無水乙醇有機溶劑性能好等優點。其中,交聯季胺化17小時配料比為1 1共聚物濕敏元件,在33 rh 95 rh濕度范圍內,阻抗變化達3個數量級( 10 ~ 7 - 10 ~ 4 ) ,響應靈敏度高,幾乎無濕滯。
  3. In chapter 5, by number value simulation calculation and experiment of one simple support beam, we will compare the magnitude of the coupling static and dynamic stress at each point on the girder under harmonic excitation, and so find conclusions such as : ( 1 ) there are so much correlations between structure damage and environmental effect and exterior excitation leads dominant effects in structure damage that we should consider static and dynamic stress together. ( 2 ) new intension design rules should be set up, according which the range of structure possible damage position should be estimated in advance

    得到以下結論: ( 1 )結構的破壞和環境的影響密不可分,外部激勵在結構破壞中發揮了重要的作用,應該將結構所受的靜力和動力一起考慮; ( 2 )應該建立新的強度設計準則,並以此作為依據,對已知結構的可能損傷位置有預先的范圍估計,從而為損傷識別的準確定位提供理論依據。
  4. Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation

    利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點,以gps信號為基準來校準本地時鐘(晶體振蕩時鐘或原子鐘) ,將gps接收機輸出信號的長期穩定度和恆溫晶振的短期穩定度相結合,應用大規模可編程邏輯器件,設計和實現了由pc104控制的實時在線授時系統。
  5. It is found that the pyroelectric coefficient and susceptibility increase with the decrease of the magnitude of the long - range interaction and the interfacial coupling when the temperature is lower than the phase transition temperature

    我們發現,在相變溫度以下,隨著雙層薄膜的界面耦合的減弱,鐵電雙層薄膜的熱電系數和介電極化率增加。
  6. Fourthly, with the finite element program, the author analyzes the relationship between the load magnitude or frequency and range of breakage or pore pressure. this can provide appropriate parameters for the method of vibrating grouting. fifthly, adopting the compressible porous medium, the author adduced dynamic theory of liquid saturated porous medium to analyze the displacement and force in the sand when there is dynamic load below the earth surface

    基於連續介質力學的混合物理論建立的多孔介質理論和動力控制方程,假設砂土滿足各向同性並處于彈性小應變狀態,豎向振動力將在飽和砂土內部產生三種波,分析了這些波的彌散曲線和特徵衰減曲線,從波傳播的角度,研究了振動力參數和土性參數對振動范圍的影響。
  7. The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable

    本文的主要工作是:對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結,指出當前預應力鋼結構工程實踐中存在的主要問題;闡述了預應力鋼結構的受力機理,並指出預應力鋼結構的適用范圍和特點;在考慮結構應力和變位約束的條件下,建立預應力鋼結構優化設計模型;提出多次預應力鋼結構優化設計方法和步驟,採用線性規劃和滿約束準則相結合的優化方法,可優化設計出施加的每一級預應力的大小,並得到結構各部分的優化截面;對多次預應力最佳的施加次數作了分析,並建議以2 3次為宜;為驗證文中理論和方法,分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計,經濟效益明顯;對水平平行弦鋼桁架的幾種施加預應力的方案進行比較,對于局部布索,預應力只對下弦起到卸載作用,對上弦和腹桿基本不起作用;而整體布索預應力除對下弦卸載外,對索折點以外部分腹桿也起到卸載作用,經濟效益好於局部布索。
  8. The wind magnitude and wind pressure can be easily adjusted in a wide range with a displaying device avilable. a well - illuminated air suction hood is equipped, which ensures clear observation of the movement of materials. besides, on both sides of the screen there are four holes available that make cleaning easy. the inclination angle of screen can be adjusted within a scope of 7 - 9. therefore, this machine is able to maintain stone - removing effect even the amount of material fluctuates. it can be used to remove the mixed stones in foodstuffs, grains, grease, feedstuffs and chemical products

    調節風量風壓方便,且范圍大有顯示裝置,配有大採光吸風罩,物料運動一目了然配有先進照明燈觀察,篩體二側設有四個清理手孔清理方便,去石篩面傾斜角度可可、調范圍7 - 9 ,因此本機在產量波動范圍之內均能達到去石效果及用於去除不同種類,糧食、雜糧、油脂、飼料、化工其它等的並肩石。
  9. The surface roughness of the fabricated micro - optics structure is in the nanometer range ; the feature height of the diffractive phase step is in the sub - micrometer range ; and can be adjusted according to requirements ; and the optical aperture of the microlens can be changed from millimeter to centimeter magnitude

    所制微光學結構的表面粗糙度在納米量級,衍射相位臺階的高度在亞微米量級並可以根據需求靈活調整,通光孔徑在毫米至厘米量級的范圍內可調。
  10. Estimates the magnitude sensitivity, magnitude valid range and probability of star capture based on signal detection and probability statistics

    以信號探測和概率統計為理論基礎,對星等探測靈敏度、星等有效范圍和星探測概率進行了分析與估算。
  11. The adaptive front - end has the adaptive ability for the magnitude and frequency of input signals. it can prefilter for the input signals, eliminate the useless signals, and improve the dynamic range of receiver system. it can lessen the burden of digital signal processing in the back - end of receiver, and improve the performance of receiver system

    自適應接收機前端對輸入信號有自適應能力? ?頻率自適應和幅度自適應,這樣的前端就可將系統的接收中心頻率和帶寬自適應到輸入信號的頻率和帶寬,其實就是對輸入信號進行一次預分選、預濾波,剔除對接收系統毫無作用的信號;同時對大信號自動減小增益,對小信號增加增益,提高系統的動態范圍;而且可以對干擾信號進行壓制。
  12. By controlling the range of the dry density, magnitude of cement and water cement ratio of mixture, the requirement of drainage property and structure strength can be fulfilled

    通過控制混合料的干密度、水泥用量和水灰比的取值范圍,可使混合料同時滿足排水性能要求和結構強度要求。
  13. It was found that self - assembly films of napss / pdda showed low impedance, good linearity and high sensitivity. impedance of sensors with 25 bilayers of napss / pdda composite film changed linearly for four orders of magnitude ( 10 - 10 q ) over the range of 20 % rh ~ 95 % rh. furthermore it was found that organic / inorganic nanocomposite films exhibit faster response than organic / organic composites

    發現: napssrpdda體系具有阻抗低、響應線性度好、濕滯小、響應快、靈敏度高等優點,其中雙層數為25的濕敏元件在20 rh95 rh濕度范圍內具有良好的線性響應,阻抗變化近4個數量級』 l 』 q卜靈敏度高。
  14. And we simulate the thing by different spatial frequency hartmann - shack wavefront sensor which is used in detecting the far field of laser beam, and we get the result that if magnitude of wave aberration is lower the dynamic range of sub - aperture of wavefront sensor, the more the spatial frequency of hartmann - shack wavefront sensor is, the more the accuracy of hartmann - shack wavefront sensor in detecting high frequency aberration is

    並且波前像差在hartmann - shack波前傳感器子孔徑動態范圍之內,空間解析度高的hartmann - shack波前傳感器對高階像差波前探測時,其光束質量診斷精度高於空間解析度低的hartmann - shack波前傳感器的光束質量診斷精度。
  15. High g micromachined piezoresistive accelerometers usually need wider bandwidth than the low range piezoresistive accelerometers, for example, the highest load acceleration of these sensors can arrive at the 100, 000g, the sensitivity is 0. 2 0. 4 v / gv, and the installation frequency can reach the magnitude of mhz

    高量程加速度傳感器往往需要很寬的頻帶,例如高量程加速度傳感器量程可以達到100 , 000g ,靈敏度0 . 2 0 . 4 v / gv ,安裝固有頻率可以達到mhz量級。
  16. It is validated that the numerical methods can absolutely predict the flow in the microchannels. the flow field around the roughness and the pressure drop of midline along flow direction are analyzed. it ' s found that the range of the pressure drop change relate to the magnitude of relative roughness, the distance between two parallel planes, the re number and ratio of the size of roughness and the distance between two roughness

    通過對粗糙元周圍流場和充分發展段中心線壓力曲線的分析,發現有粗糙元存在的兩平行平板間微通道,其充分發展段壓降大於光滑平板充分發展段壓降;當相對粗糙度和re不變時,隨著板間距的減小,粗糙度對主流的影響不斷增大;當板間距和相對粗糙度不變時,在層流狀態下,粗糙度對流動的影響不隨re的變化而變化;當板間距和re保持不變時,相對粗糙度越大,其對流動的影響就越大。
  17. Polysaccharide of mycelia from phellinus igniarius cultured by shaking were studied. lg9 ( 34 ) orthogonal experiment were carried out to find the optimum method of extracting polysaccharide from mycelia. the magnitude of range indicated that the factors which effected extracting ratio were times, time, temperature and proportion

    本文對液體培養桑黃菌絲體的主要活性成分多糖進行了研究,首次利用lg9 ( 3 ~ 4 )正交試驗法對桑黃菌絲體多糖的提取工藝進行研究,從級差的大小可以看出影響桑黃菌絲體粗多糖提取率的因素主要是浸提次數,其次分別是浸提時間、吉林農業大學碩士學位論文桑黃主要生物學特性及多糖的研究浸提溫度、浸提比。
  18. The m5. 7 jiujiang earthquake was the first seismic event with above the magnitude 5, within the range of about 500km occurred since the start of water temperature observation in ningbo seismostation

    摘要2005年11月26日8時49分江西九江發生了5 . 7級地震,震前寧波地震臺水溫測值出現了比較明顯的短、臨異常。
  19. The variation of the operating condition did not change the distributive range magnitude of the dispersed phase droplet

    螺桿轉速和擠出機產量的變化對末端分散相液滴直徑的分佈范圍影響不大。
  20. It roundly expatiated theory of microbent single - mode optical fiber ' s strain sensor and connections of dynamic range and distributing magnitude of strain sensor

    全面闡述了單模光纖微彎應力傳感原理及應力傳感器的動態范圍與分佈個數的關系。
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