最小高低角 的英文怎麼說

中文拼音 [zuìxiǎogāojiǎo]
最小高低角 英文
minimum elevation
  • : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
  • : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
  • 高低 : 1 (高低的程度) height 2 (高下) relative superiority or inferiority; difference in degree 3 (...
  1. Optimal design with three variables is then done to the elbow - bar mechanism of the mp1040b moulding machine by utilizing the method of punishing function for constraint problems and variational scale for unconstraint problems. the optimal target function is the maxium of gradient in one work travel for the moulding plank of the elbow - bar mechanism. the result shows that the maximal gradient of moulding plank in one motion period declines by 25. 7 after optimization, and the angular acceleration of the bottom moulding plank decreases greatly

    動力學分析中,各構件的質量和轉動慣量是通過pro / engineer軟體,先建立各個構件幾何模型而求得;然後,利用解決約束問題的罰函數法和處理無約束問題的變尺度法對mp1040b型模切機肘桿機構進行三個設計變量的優化設計,優化目標函數為肘桿機構的下模切板在一個工作行程中達到的大傾斜程度;通過優化設計,模切機肘桿機構的下模切板在一個工作行程中的大傾斜程度降了25 . 7 ,其加速度明顯減,提了模切機動力學性能。
  2. Depicting the dynamic features of the minimum risk hedge ratios with diagonal bekk models which capture the interaction of spot and futures currency markets concludes that hedging does alleviate exchange rate risk, although different hedging strategies rank in hedging effectiveness according to their respective duration

    採用對bekk模型來捕捉貨幣現貨與期貨市場的交互影響,從而刻畫風險化套期比率的動態特徵,結果表明,套期保值能減少匯率風險,但具體的套期保值策略的效率排序與避險頻率相關。
  3. And then, thesis explicates the reasons of the difference from five aspects including natural resource, area conditions, labor conditions, technical conditions and industry structure. furthermore, the thesis points out that the sustainable utilization of natural resource, the adjustment of labor structure, improvement of labor qualities, the employment of advanced science and technology and reasonable industry structure are critical to the improvement of rural economy ' s integral, power and comprehensive competition. at last, this thesis puts forwards a series of policies and countermeasures, such as accelerating urbanization of villages of villages to develop increasing pole, enchanting agricultural, industrialization to strengthen the industry foundation, improving the help and development policies to the poor to strengthen the district economic cooperation and the coordination effect by decreasing the limits of the poor, and so on, which can encourage each area display its advantage and supply what the other needs and make the rural economy coordinated and commonly flourishing

    根據分析結果將11個市劃分為省內發達區域、中等發達區域和不發達區域三種類型,將138個縣(市)劃分為由七個等級;對差異產生的原因從自然資源、區位條件、勞動力條件、技術條件、產業結構等五個方面進行了系統探討;並從更深層次上指出,土地等自然資源的可持續利用,勞動力構成優化、素質提,先進科學技術的適用,產業結構的合理布局等對農村經濟的整體實力和綜合競爭力的提起決定性的作用;後,在河北省農村經濟協調發展的度,提出了「因地制宜,揚長避短;優勢互補,共同發展」的指導思想和「鼓勵先進,鞭策后勁;區域聯動,全面協調」的基本原則,並進一步提出了加大城建設? ?培養增長極,推進農業產業化經營? ?強化產業基礎,改善扶貧開發政策? ?降后勁制約以及加強區域經濟聯合? ?增強協調效應等綜合措施。
  4. First, introduce the reasons and character of current banking m & a, then summarized the former studies of the three ways of m & a to efficiency gaining : size versus size economy, m & a versus banks efficiency, and m & a versus shareholders wealth. then introduce the research approaches of m & a efficiency gaining, especially the approaches of m & a versus banks efficiency, such as parametric frontier approaches and non - parametric frontier approaches. in the following, through roe model and dea model to study the relations between size and efficiency, finding : middle size banks efficiency is higher, larger banks have n ' t scale economy, small banks have low em, and through directly analyzing m & a efficiency of four commercial banking m & a case in china, finding : the past - merged efficiency of shanghai pudong development bank has been improved, and others have been deduced, but after three years the efficiency increased little by little

    首先,分析了當前銀行並購的主要原因、特徵以及我國銀行並購的現狀與特點;接著對銀行效率水平的概念進行分析,綜述了國外對銀行並購與效率獲利的三方面的研究(考察銀行的規模與效率這種間接方式、比較並購行並購前後的效率以及並購行與非並購行的效率和考察上市銀行並購前後股東財富的變化這兩種直接方式)的有關文獻;再次對銀行並購與銀行效率獲利的分析方法進行了介紹,其中詳細地研究了前沿分析法:參數分析法和非參數分析法,並指出了這些方法的特點;然後運用財務比率分析法和dea方法對我國商業銀行規模與效率從間接度對銀行並購產生的效率獲利進行了實證研究,結果發現:中等規模的商業銀行的效率佳,而規模的銀行的em值較,同時大規模的商業銀行的規模無效;同時利用我國已發生的四個銀行並購案從直接的度對我國商業銀行並購的效率獲利進行分析,結果發現:除上海埔東發展銀行在並購後效率提,其他三家銀行並購后的效率都有所下降,但並購后第三年效率又逐漸回升。
  5. In part one, the general of reclamation of arable land for reforestation : basing on resulting lots of data, author referred to many measures taken by america and china in the reclamation of arable land for reforestation and took the comparison, which concluded the following : china does not take the ways that the developed countries firstly destroyed before protection ; carrying out the reclamation of arable land for reforestation step and step is the important step which improves the reasonlesss utilization of land ; because of the weak economic base in the reclamation of arable land for reforestation of china and the low rate of labor, we should enlarge the content of science and technology, improve per yield of the remaining cultivated land and solve the self - sufficiency of grain, meanwhile the government should strengthen the transfer of remaining labor, adjust the industrial construction and lead the construction of small cities and towns ; the implement of reclamation of arable land for reforestation does not leave the support of the government ; we should carry out the reclamation of arable land for reforestation according to law ; the reclamation of arable land for reforestation does not be seen the effort in the short time, we should insist in a long time. which can have the result

    本論文共分八個部分:第一部分退耕還林概況:筆者在查閱大量資料的基礎上,參閱美國與中國的退耕還林過程中所採取的各項措施並進行比較,得出了以下結論:中國不能重走發達國家先破壞后保護的道路;有計劃、有步驟地實施退耕還林是改善不合理土地利用現象的有力舉措;中國退耕還林經濟基礎較為薄弱,農業勞動生產率,退耕還林后,必須加大科技含量,提剩餘耕地的單產,解決糧食自給問題,同時,政府應加強剩餘勞動力轉移,產業結構調整及城鎮建設的引導;退耕還林的實施仍離不開政府的扶持;依法退耕還林;退耕還林不是在短期內能見到效果的,長期堅持必有成效。該部分後論述了目前國內退耕還林工程政策、管理方面的現狀及其存在哪些問題尚待改進或繼續深入研究,並需要進一步完善。第二部分退耕還林背景分析:針對我國目前生態環境建設中的退耕還林工程,就其產生的根源從社會經濟背景、生態環境背景及西部大開發三個度進行了全面、系統的分析。
  6. Part two : organizing strategy of cooperative learning in implementation of new mathematical curriculum this part analyzes the problem in the process of implementing of cooperative learning in new mathematical curriculum by observing in classroom and studying case. six problems is : ( 1 ) the group activity stay on the formal, and lack the material cooperation ( 2 ) individual duty diffuse, " take a ride " phenomenon have the occurrence ; ( 3 ) student social intercourse technical lack. ( 4 ) no change in teacher ' s role, lacking guidance to student ; ? ividing group difficultly for big class formation, fulling of too much noisy in classroom ; ? valuation system is not well, group cooperation exist in name only, provides six suggestions for these problems : ( 1 ) dividing group scientificly and vividly ; ( 2 ) leading student active cooperative learning ; ( 3 ) increasing the individual duty ; ( 4 ) cultivating students " cooperative method and social intercours technical ; ( 5 ) enhancing management in classroom ; ( 6 ) handling a few relations rightly ; finally, puts forward the principle and program of orgnizing cooperative learning in new mathematical curriculum

    二、新數學課程實施中合作學習的組織策略本部分在對實驗區數學課堂觀察和個案研究的基礎上,分析得出了新數學課程實施中合作學習存在的6個問題:組活動留于形式,缺乏實質性合作;個體責任擴散, 「搭車」現象時有發生;學生社交技能欠缺,合作效率下;教師對自己色轉變認識不清,指導作用沒有跟上;大班額分組困難,課堂過于喧嘩混亂;評價體系沒有跟上,組合作名存實亡。針對這些問題,對新數學課程實施中開展合作學習提出了6方面建議:科學靈活地分組;引導學生主動合作學習;提個體責任:重視對學生合作方法、社交技能的培養;加強合作學習中課堂管理;正確處理幾對關系。後提出了新數學課程實施中合作學習的組織的原則和組織序列。
  7. Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result

    西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方法,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移」 ,以及「構件內力」 。結果表明:在等面積原則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減,地震反應力略有增加,框架柱軸壓比大增幅於8 % ,結構整體抗震性能有所提;當異型柱肢長肢厚比於等於3 . 6時,結構有利於抗震;水平地震作用力與整體坐標夾為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移,構件內力增大適中,是一種抗震性能優越的結構體系:在抗震設防烈度較地區( 8度)和抗震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,降地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算,兩種方法所得結果基本一致。
  8. The bigger the diameter, the high the heat efficiency, but the weak the temperature increasing ability, length has less effect on the heat efficiency, tilt angle has less effect on the flow field and temperature field while it is larger than 30 degree, vacuum degree and emissivity have great effect on the flow field and temperature field while there is a great temperature difference between the liquid in the tube and the surroundings, the furring has less effect on the heat transfer but should be cleaned up in 3 - 5 years because of poor water quality, the higher the solar flux or the more the temperature difference between the liquid and the surrounding, the more the heat loss and the lower the heat efficiency

    分析了各種因素對太陽能真空集熱管流場和溫度場的影響。直徑越大,熱效率越,但升溫能力弱;長度對熱效率影響不大;傾斜度大於30后,自然對流已經能夠充分進行,考慮以能夠吸收到大太陽輻射為主;真空度和發射率對熱效率和溫度場影響很大,尤其是在介質溫度與環境溫度差異比較大時;水垢對傳熱影響較但由於水質的問題應該被3 5年清洗一次;太陽輻射強度越大,介質溫度與環境溫度差異越大,熱損失越大,效率越; 4
  9. Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum

    研究結果表明:傾斜度一定,當熱浮力與物質擴散浮力共存且二浮力之比b從較正值變化到較負值時,流體速度和熱質傳遞速度從逐漸變並出現值,此後隨著向下浮力的增大,流體向下流動且隨| b |的增大而加速,熱質傳遞速率隨| b |的增大而重新增大。
  10. Due to the existence of the eddy and the abrupt bend of the stream line, the pressure on the four faces has the distribution as follow : the lowest pressure appears at several centimeters after the angle point along the top boundary, the highest pressure appears near the center line of the vertical shaft on the bottom boundary, near the angle point, the pressure on the inner boundary decreases with the decreasing height, the pressure on the external boundary decreases slightly in the right - angle region, and increases obviously near the corner

    迴流漩渦的存在,以及直彎處流線的急劇彎曲,導致壁面壓力分佈在上表面距彎點一定距離后出現壓力值,下表面上,在豎井中心線略偏下游的位置出現壓力大值,豎井內表面接近彎點處出現壓力沿程降的現象,豎井外表面壓力在進入直彎后先是沿程略有降,在直彎落處又明顯升
  11. In order to get the knowledge about public payment awareness of forest environmental services ( fes ), this paper analyze about 600 questionnaires with spss, and the result is showed as the following : ( 1 ) publics have different payment awareness to forest environmental services : the maximum is eco - tourism, then the watershed services, the minimum are biodiversity service and carbon sequestration ; ( 2 ) family income, perception of fes benefits and the moral responsibility effect participants ' payment awareness effect participants ' willingness to pay ( wtp ) directly and strongly ; ( 3 ) the recognition of fes, attitude to fes payment and fes impact range effect indirectly

    摘要採用分層等距抽樣技術,並利用spss軟體對在長三地區發放的旨在調查公眾對森林環境服務付費意識的600份問卷(其中有效問卷551份)進行統計后獲知: ( 1 )公眾對森林生態旅遊服務收費的認可程度,其次是水文服務,而對生物多樣性和固碳服務的支付意願; ( 2 )直接影響公眾付費意識的因素包括:家庭收入、公眾對自己從森林環境服務中受益程度的認識、公眾對森林環境服務所具有的道德責任感等; ( 3 )公眾對森林環境服務重要性的認識、對森林環境服務收費的態度、森林環境服務的作用范圍則間接地影響了其支付意願的大
  12. With the disturbance of random wave the ship will inevitably roll and result in the ship ' s incline, especially, for small ships which the most obliquity of the ship is likely to reach above degree 15. in the actual combat the rolling movement of the ship will result in difficult control of the artillery for the artillerymen on the ship, reduce the artillery ' s probability of shots, and affect the power of the artillery by direct control of the object ( artillery ) fixed on the ship it can be kept horizontal state all the time

    尤其是對大量的型艦船,船體的大傾甚至可達到15以上。在實戰中,船舶的搖蕩將造成炮手對船載火炮的操縱性能降,降火炮的發射命中率,影響到船載火炮威力的發揮。通過直接控制固連于船體的火炮,使其始終保持在水平狀態,可以提實戰中火炮的操縱性能,提火炮的命中率。
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