替位環 的英文怎麼說
中文拼音 [tìwèihuán]
替位環
英文
displacement loop-
The results show that ( 1 ) loops are in general more variable than stems, and in loops a strong adenine bias are observed : ( 2 ) there does not exist a saturation effect in stems, loops or all positions of the 16s rrna gene fragments : ( 3 ) in the molecular cladogram, bagarius forms a sister group with glyptothorax, and euchiloganis forms a sister group with pareuchiloglanis, and exostoma forms a sister group with glyptosternum : ( 4 ) the phlogenetic positions of pseudecheneis, exostoma and glyptosternum are not recognized ; the glyptosternoid fishes are not monophyly although they are defined by 13 osteological apomorphies ; the incongruence of cladograms between molecular and morphological sets may be caused by less informative sites of the 550 homologous sites ; ( 5 ) e. davidi and e. kishinouyei could be the same species according to the genetic distances ; p. sinensis and p. anteanalis could be too
結果表明： （ 1 ）環區平均變異位點較莖區多，有很強的a偏好性； （ 2 ）沒有替代飽和現象； （ 3 ）分子系統樹上?屬和紋胸?屬構成姐妹群，石爬?屬和?屬構成姐妹群， ?屬和原?屬構成姐妹群； （ 4 ） ?屬、原?屬和褶?屬的系統發育位置不定， ? ?魚類並未形成一個單系類群；可能的原因是所得到的16srrna基因片段信息位點太少； （ 5 ）青石爬?和黃石爬?可能是同一物種，中華?和前臀?可能是同一物種。Here a low cost optimal position system with speed - loop open and position - loop closed based on fuzzy control is presented, it employs fuzzy controller to verdict rotor velocity approximately and a fuzzy switching curve is substituted for real one to achieve bang - bang switch, no limit - loop or oscillation occurs. at the end of this chapter, a dc break curve is discussed
為了實現經濟實用的點對點快速定位系統，實際系統採用速度開環、位置閉環結構，速度量從模糊控制器得到，既不實測也不軟體估計，用模糊開關線代替真實開關線進行控制量狀態切換，無極限環或振蕩現象，而成本則大大降低。Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession
對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力To add " although " after " that, " ; to delete " and " after " all over the world, " ; to delete " has all along supported " after " the sar government " and substitute with " still needs to strengthen its support for " ; to add " in view of the difficult business situation of the industry, allocating more resources to promote monument sponsorship, green ecology and local customs, and setting a timetable for developing hong kong s cultural characteristics of the east meeting the west under one country, two systems, thereby improving the hardware and software of the industry s business environment on a broader level ; restructuring the hong kong tourism board and travel industry council of hong kong to enhance their representation and further include the participation of trade union representatives ; further promoting good labour relations in the industry, comprehensively perfecting the employment system and formulating reasonable employment conditions including basic salaries, employees compensation insurance, mandatory provident fund, medical benefits and holidays, etc, improving the employee - employer and staff - management communication mechanisms and promoting cooperation between the employees and employers in order to create a win - win situation for both sides, so that both sides can join hands in promoting the development of the industry ; through commending trustworthy shops and tourist guides and employees in the industry who are professional, sincere, friendly, hospitable and make tourists feel welcomed, establishing quality brand names and goodwill of local tour reception agencies to improve the image of the local tourism industry ; " after " which include : " ; to delete the original " and substitute with " ; to delete the original " and substitute with " ; to delete ", eliminating uneven distribution of interests " after " internal conflicts in the industry " ; and to add ", so as to foster a sustainable and healthy development in the local tourism industry " immediately before the full stop
王國興議員動議下列修正案：在"香港"之前加上"雖然"在"國際城? ， "之後加上"但"在"特區政府"之後刪除"一向亦" ，並以"仍必須加"代替在"大力"之後加上"度"在"包括"之後加上"一鑒于業界經營困難，增撥資源推動認養古跡綠色生態及人文風俗，並訂定時間表，以發展香港在一國兩制下中西交匯的文化特色，從而在更廣的層面改善業界經營環境的軟體和硬體二重組香港旅遊發展局和香港旅遊業議會，以增加其代表性，並進一步吸納工會代表的參與三進一步推動業界建立良好的勞資關系，全面完善聘用制度和制訂合理聘用條件包括底薪勞保強積金醫療及假期等，改善勞資及管職的溝通機制，促進勞資合作，達致勞資兩利，使雙方能共同手促進業界發展四透過表彰誠信經營的商號，以及專業誠信親善好客及使旅客賓至如歸的導游和從業員，樹立本地旅遊接待單位的優質品牌和信譽，以改善本地旅遊業界的形象"刪除原有的"一" ，並以"五"代替刪除原有的"二" ，並以"六"代替在"業內矛盾， "之後刪除"消除不平衡的利益分配， "及在緊接句號之前加上" ，促進本地旅遊業界持續及健康發展" 。With succession of community, the activity of catalase increased gradually, and the vertical variation of the activity was affected by environmental factors and did n ' t show identical rule
華東師范大學博士學位論文摘要過氧化氫酶活性隨著演替的發展有逐漸增大的趨勢。各植被帶酶活性垂直分佈受環境因子的影響而沒有統一的分佈規律。Partial substitution of manganese in lixmn204 by cobalt or lithium can reduce the fermi energy, increase the. net charge of lithium ion, and diminish the value band width, corresponding to the drop of the discharge voltage, the loss of the reversible capacity, and the improvement of the cycling performance due to increasing structural stability, respectively
在limn2o4中摻入鈷和用鋰離子代替16d位錳離子將使材料的費米能減小，放電電壓降低；摻雜態中部分鋰離子的凈電荷增大，鋰離子與氧離子的相互作用增強，可逆容量降低；摻雜態的價帶寬度變窄，結構的穩定性增加，從而改善循環性能。First, on the base of investigating geleshan geologic environments, the author carefully analyzes them, studies their water storage structure, discusses the relationship of underground water dynamic changes and tunnel drainage by desiccation ; secondly, the author makes the dynamic analysis, regression analysis, routine hydrochemistry analysis, isotope analysis, so draws to guan - yin gorge anticlire east and west slot ' s karst developing features, alternated conditions underground water and supplying drain ways ; thirdly, by stating the fissuring ' s surveying data, the author calculates the seeping tensor
作者在進行歌樂山地質環境調查的基礎上，仔細分析了大量觀測資料，研究其儲水構造，掌握地下水動態變化與隧道施工涌水的關系，及補給受降雨的影響情況。對隧道周圍的地下水進行動態分析、回歸分析、常規水化學分析以及同位素分析，得出觀音峽背斜東西翼槽谷的巖溶發育特徵，及地下水的循環交替條件、補給排泄途徑；統計分析裂隙測量數據，計算滲透張量。The synthetic operation of engineering pipelines of a residential area is to collect designed and existing information of each kind of engineering pipelines in the layout space of the residential area, to analyze and investigate the information, to find out and solve the conflict in the constructing process of the engineering pipelines, to synthetically arrange the plane and vertical location of the engineering pipelines, to provide the foundation for the engineering pipelines " designing, construction and management the leading content of this dissertation is how to make use of the vertical space under roads in the residential area and rationally locate every underground engineering pipelines
小區工程管線綜合就是搜集包括現狀的小區規劃范圍內各項管線工程的規劃設計資料，加以分析研究、綜合安排，發現並解決工程管線在規劃設計中的矛盾，合理地安排各管線的平面位置和豎向高度，為各工程管線的設計、施工和管理提供依據。由於架空敷設方式很難保持環境的完整和美觀，有礙小區進一步發展，且存在諸多不安全隱患，正被逐步替代，因而，如何利用小區道路下的豎向空間，合理設置各專業埋地管線，成為本文研究的主要方向。This thesis takes the process of the futures delivery as the object of the research, analyzes and investigates the physical delivery system. firstly the thesis introduces the connotation, status and functions of the futures delivery in the futures market, and then makes a deep research in the futures delivery systems concerned such as the designing of the grade of the listed commodity at par as well as the premium and discount, the selection of the delivery locations and the regulation on the designated delivery warehouses, as well as the management and circulation of the warehouse receipts. on the basis of the above - mentioned analysis, this paper makes some constructive suggestions and recommendations on the improvement and innovation of the futures delivery to be taken by the chinese futures market at the present stage
本文首先闡明了期貨交割在期貨市場中的經濟內涵、樞紐地位和功能保障作用；然後，從合約設計出發，用均衡原理揭示了期貨交割制度與品種活躍和風險控制的有機關系；進而，對比中外交割制度，通過比較，認清了中外現貨基礎、誠信和法制等環境因素的差距，明白了「拿來」的內容和如何構建中國特色的交割制度；從而，就小麥國家標準的歷史局限性，標準和替代交割品級及其升貼水的設計原則，交割標準把握的出發點和落腳點，交割倉庫設置和管理的目標和狀況，標準倉單沾滯的根源等期貨市場交割制度及相關規定，進行了深入而細致的剖析。A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm
在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。Due to the influence of climate drought and human activities, the ecological environment of qinghai province is in an increasingly grave condition, namely, climate abnormal events occurring frequently, grassland degenerating, ground sanding, glacier shrinking, water level of lakes descending and river runoff decreasing, and so on. in the basis of extensively collecting and analyzing the data of qinghai ecological environmental factors such as climate, water resource and grassland resource etc., the further basic research is performed on the ecological environment characters of main climate factors, surface runoff, water resource, lcc and their correlation to coordinate with the basic, strategic and precursory research for the development of china west part and provide the scientific foundation for corresponding development both ecological environment and social economy, and persistent utilization of natural environment resource
本研究針對當前在氣候乾旱化和人類活動的共同影響下青海省生態環境中氣候異常事件即氣象災害頻繁發生、草場退化、土地沙化、冰川萎縮、湖泊水位下降和河流流量減少等生態環境退化現象日益嚴重的實際，在廣泛收集和整理青海省氣候、水資源、草地資源等生態環境因子基礎資料的基礎上，對青海的主要氣候要素、地表徑流、水資源、植被的演替及其相互間的關系等主要生態環境變化特徵進行了基礎性的研究。With the widespread and profound impacts of global change on the natural elements and progress, the society and economy, and even the human activities, the study of global change has become one of the most active frontiers in the current earth science research field. especially, climatic and environmental changes of holocene and human history is a very important time scale of the study of global change. however, the geographic surroundings and the natural environment of the southern margin of tarim basin, which lies in the hinterland of eurasia continent, are so special that it is difficult to obtain the proxies indicating its environmental evolution
在多年來前人研究成果的基礎上，本文通過尼雅剖面年代解析度可達10a的沉積物質量磁化率、碳酸鹽碳同位素、粒度等氣候替代性指標及約特干剖面的地球化學元素、孢粉等氣候指標信息的結果分析，並結合達木溝、塔格勒等剖面的成果及相關資料，得出以下結論： （ 1 ） 、南疆塔里木盆地南緣中全新世6 . 7 3 . 0kab . p .以氣候溫暖偏乾的荒漠環境為總體特徵。This paper gives the way of using the ac servo drive instead of the traditional drive mode consisted of the main motor, the gears and belts, realizing the synchronous drives of the multi - motors. the closed loop control technology of the speed and the position embedding has been adopted to track in real time, then to reduce the transmission error and the noise, so as to increase the control precision and the stability of the combination and simplify the maintenance and repair of the mechanical and technical system
採用交流伺服驅動代替傳統的由主電機、齒輪和皮帶組成的傳動方式，實現多電機同步驅動;採用速度環和位置環嵌套的閉環控制技術，進行實時跟蹤，達到減小傳動誤差、減小噪音，增強機組的控制精度與穩定性、簡化機電系統的維護與修理的效果。Wuhan which is the sixth biggest city of chinese cities, is the center of economy, technology, culture and education. wuhan owns many superiorities that ca n ' t be taken place by other cities, such as geography trained personal information industry etc. wuhan economic and technical development zone and donghu new technical development zone have become the economic growth point
武漢作為全國城市綜合實力第六強的超特大型城市，是中國內地最大的經濟、科技、文教中心，具有不可替代的區位優勢、人才優勢、信息基礎設施建設優勢、信息產業的優勢、信息技術應用優勢等諸多優勢，武漢經濟技術開發區，東湖新技術開發區成為新的經濟增長點，具有發展信息產業的良好環境和條件。The innovative ideas in this paper is to replace the linear fixed - gain pid controller for a nonlinear pid controller. based on the step response curves of conventional control system, we analyze the ideal variety of three gains in different times and construct the simulated curves of proportional, intergral and derivative gain. the controllers has considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, the dynamitic performance of the system and the size of input. to solve the problem of so many unknown parameters, we use transmit arithmetic to find the parameters which are fit for the system. to keep the robust and stable performance
本文的創新之處在於，將傳統的固定增益的pid控制器用非線性pid控制器來代替，並在此基礎上，就一般控制系統的階躍響應曲線，分析了在不同響應時間階段pid的三個增益調節參數的理想變化情況，並根據這些理想變化，分別給出了比例、積分、微分增益參數的一種連續的非線性擬和函數。在分析雙位置環時，仔細考慮了能使系統性能變壞的各種因素，如系統的動態性能及控制出入能量的大小等等。Moreover, its interior pll circuit substitutes traditional pll. as a result, the presented design not only overcomes some shortcoming of traditional circuit such as tracking speed and accuracy, but also gets rid of response lag time and multi - phase noise. the system design is also important to improve our country ' s fault diagnosis standard
而該系統內部鎖相電路代替了傳統方法中的pll ，因此，提出此系統設計不僅能夠克服基於傳統鎖相環電路的等轉角采樣方法跟蹤精度低、速度慢和使用不便等特點，還能克服電路中的由於不可避免的響應延遲時間所導致的不適合快速的列車運行及過多的相位噪聲問題，對于推動我國鐵路故障在線診斷技術的應用普及具有重要意義。The development of automobile industry induces increasingly serious problems of environment pollution and the scarcity of oil source, so it is imperious to seek for a new technology of saving energy, reducing the exhaust emission of automobile and the replaceable material
汽車工業的發展把能源短缺和環境污染問題推到了日益嚴重的位置，因此研究汽車節能、降低排放和替代燃料的新技術成了當今汽車工業的重大發展方向。The exploitation and utilization of natural gas play a very important role under the background of international oil price rapid rise up and national energy security and environmental protection policy. therefore, the natural gas exploration and exploitation in sichuan basin was the no. 1 project in sinopec group
在國際原油價格飛漲以及國家能源安全和環境保護政策的大背景下，天然氣的開發和利用上升到一個非常重要地位，中石化集團把四川盆地列為「十一五」天然氣勘探開發一號工程，同時，工程設計與工程技術進步對天然氣的開發起著不可替代的作用。Speaking from its outline, shallow and deep color existing alternately is the direct reason why the bands emerged, while the periodical change of the total fe content in the sapphire is the foundmental reason ; in the same band of the same sapphire, the total fe content is nearly the same, so in this sense any spot can respresent the whole band in which the spot lies ; in one sapphire, the deep - color band must contain the higher fe than the shallow one ; the sapphire which exists bands must have a black or a dark blue core, where the fe content is usually higher than other bands. 2
研究表明，山東昌樂的藍寶石普遍發育環帶，從外觀上講，藍寶石中深淺色度的交替出現是出現環帶的直接原因，而總fe含量的近周期性變化是形成藍寶石環帶的根本原因；同一藍寶石的同一環帶，其總fe的含量幾乎相同，所以該環帶上的任何一個成分點都可以代表整條環帶的成分；同一藍寶石的不同環帶，顏色越深，含fe越高，顏色越淺，含fe則越低；凡出現環帶的藍寶石，其核部總是深黑色或者藍黑色，而其含鐵量一般都比其它部位高。This paper primarily studys that how to make robot system works smoothly under condition of random obstacles by sensing environmental informations, on the other hand, the robot control system use dynamics method instead of location one to command manipulators performance, as a result, impact force between manipulators each other which is caused velocity _ break will be reduced greatly, and then, manipulators " life _ span will improve naturally, and because of reliable obstacles - avoidance arithmetics, robot system is almost able to feedback to obstacles as fast as it be, this character makes its intelligence mount up greatly
本論文旨在研究針對惡劣環境（有隨機障礙物存在） ，使機器人在正常工作前提下，通過「感知」外界環境，迴避一切可能影響其工作的情況。另外，機器人控制方面，利用動力學代替位置控制，從而減小機器人在迴避障礙物過程中由於速度突變而引起的沖擊力，以提高其使用壽命；並利用可靠的避障演算法使其能在最短的時間內做出快速迴避的反應，以提高其智能性。分享友人