步階變化 的英文怎麼說
中文拼音 [bùjiēbiànhuà]
步階變化
英文
step change-
Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )
2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地,通過多次現場采樣與室內實驗分析,測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分,並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗,初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。The driver model should imitate the behavior of a real driver as well as possible. for this purpose, the staring behavior was defined by taking into account the coalesce process about the drive side and take - off side of the friction clutch, the driving behavior was defined by taking into account the change of acceleration pedal position, arrester pedal position and clutch pedal position in the shifting process
定義車輛起動特性時考慮了起步階段離合器主從動部分的接合過程,定義行駛特性時考慮了行駛階段加速踏板和制動踏板的開度變化以及換檔過程中離合器踏板和加速踏板的開度變化情況,真實地描述了一個駕駛員的特性,使得模擬結果更接近於實際。Firstly, evidence from depositional pattern suggests that the hsl has experienced an expansion - contraction circle since the late glacial epoch. the expansion and movement of the hsl or desert in early stage were clearly marked by the presence of paleo - aeoline sands. the occurrence of paleosoal characterized the stabilization and contraction of the hsl and also indicated the activity of pedogenesis on the paleo - aeilian sands
通過系列氣候代用指標的分析,首次發現該地區粒度、磁化率指標值在兩個大的峰值之間有多個小的峰谷出現,表明了在大的氣候變化階段次一級的暖濕?乾冷氣候波動,值的進一步做年齡的小尺度高解析度研究。Oogenesis was described briefly and the ways of the formation of yolk granules were explored. at first, eight stages in the oogenesis of the acrida chinensis were distinguished and described respectively, basing on the changes of the oocyte ' s size, chromosomal changes in the nucleus of the oocyte, vitellogenesis and the size of the follicle cells
在基礎理論方面,本研究首先在光鏡水平對中華蚱蜢卵子發生進行了階段劃分;並以此為依據,用組織化學方法對卵子發生中卵母細胞與濾泡細胞遺傳物質的變化及作用,組成卵黃的生物大分子物質的生成及變化進行了初步研究。The theory of " companying " is the saltant transformation for credit card, and is just underway
公司化理論對于信用卡業而言,是一次飛躍式的轉變。這一理論與信用卡業的結合尚處于起步階段。Historically, our country is a rather developed country of execution of retaliation. nowadays, with great changes in all aspects of our society, the traditional concept of execution of sentence has been challenged and the system of execution of punishment needs reforming. the present pilot project of community - based corrections in our country marks a new stage for the socialization of execution of sentence
從歷史上看,我國是報復刑很發達的國家,長期採用監禁刑,當下,我國社會各方面發生了深刻的變化,傳統的行刑理念受到挑戰,刑罰執行制度也面臨著變革,我國正在開展的社區矯正試點工作標志著行刑社會化步入新的階段。The holocene was a period that had a close relation with mankind, so it could be very important to bring to light the laws of holocene climatic variations for understanding nowadays geographic environment and its trend of development
全新世是人類文明迅速發展進步的時期,揭示全新世氣候的變化規律對于認識現階段地理環境及其發展趨勢具有重要意義。A new model for the growth stage of surface flashover has been developed according to the experimental results, which is based on the solid band theory. it is suggested that the electron multiplication could be attributed to two processes : one is the secondary electron emission avalanche caused by collisional ionization, the other is the micro - discharge caused by the trap centers of insulator. the trap cente
電子倍增的過程與材料的表面態直接相關,材料微觀結構的變化和材料的表面處理都能夠導致材料表面態的變化,引起材料的表面二次電子發射系數以及材料中陷階密度和分佈的改變,從而影響了電子倍增的過程,並進一步改變或影響了沿面閃絡的發展過程。This dissertation examines the development of the salary determination mechanism in china and finds that this development is a market - oriented development process, while, at present stage, the retaining of many non - market factors, lack of collective bargaining and the dual mechanism of salary determination hinder the development of market - oriented salary mechanism in china and lead to unfair distribution structure of factors, especially the distribution proportion between labor - generated income and capital - generated income
回顧新中國工資形成機制演變的歷史可知,企業工資形成機制的演變過程是一個逐步市場化的過程,現階段殘留有諸多非市場化因素,且工資集體談判機制缺失,雙軌工資形成機制並存,這制約著企業工資形成機制的市場化進程,使要素收入分配的結構特別是勞動收入和資本收入的比例出現明顯不公。The development of shear band was researched by analyzing the confining pressure - time history, volumetric curve and displacement field of pfc model
通過分析圍壓時步曲線、體變曲線和不同階段的顆粒位移場的變化規律,研究了剪切帶的形成與發展規律。Concrete elastic modulus and concrete creep and shrinkage variety at different time are reckoned in by using time increment analysis method and concrete creep and shrinkage secondary force is calculated by using effective elastic modulus. bridge stability analysis program is developed on the base of structure matrix displacement method, the program adopts visual basic language, has friendly interface and visual data input windows. the buckling safety factor of currently finished structure is given as result
為計入混凝土彈性模量的變化及混凝土徐變收縮隨混凝土的齡期與外荷載加載時間不同而變化的影響,採用時間增量法對每個計算階段根據其階段內時步數進行循環,以計算時段內彈性應力、應變增量和徐變、收縮產生的應力應變增量,利用有效彈性模量法計算混凝土徐變收縮次內力,在此基礎上,結合結構矩陣位移法的基本理論編制開發了計入混凝土時效效應的高墩大跨徑橋梁穩定分析程序。In the anaphase of development, the water content ratio is high in the reservoir, the microcosmic distributions among the formations are different. in order to get the situation of the remaining oil, the author applied fine numerical simulation methods to study every small layers about tuo28 down reservoir. because the characters about geology and liquid are different from past time, the change have been considered
為進一步搞清坨28斷塊下油組各單元特高含水開發後期剩餘油在層間、層內的微觀分佈,本文重點介紹了精細數值模擬方法對下油組各小層的研究,與以往數值模擬研究不同的是,本次研究充分考慮了坨28斷塊的地質特點和流體特徵隨時間的變化,結合不同開發階段,建立了不同的模型,從而使研究結果更接近地下油藏實際。So the only way for agricultural development is structural adjustment. under the theory of structure economy growing, the theory duality economy structure and the law of the industry structure evolution mainly, this paper, firstly, analyzes the characteristics of evolution and current situation of hubei province ' s agricultural industry structure including the evolving better, singleness, facing crisis, by stage, lack of power, crop ' s development setting back the evolution, asymmetry - structure between the production value and output, the similar structure with the whole nation and the peripheral provinces, and so on
本研究在結構主義經濟增長理論、產業結構演進規律和二元經濟結構論等經濟學理論的基礎上,首先通過產值比重結構對比、產業結構變動度、產業結構波動度、產業結構相似度和偏離系數等指標和方法,從多方面分析了改革開放以來湖北省農業產業結構演進與現狀特徵:農業產業結構逐步優化,但結構單一,面臨危機;農業產業結構呈階段性演進;農業產業結構演進缺乏動力;種植業成為湖北省農業產業結構優化障礙;農業產值與產量結構不對稱,出現逆向變化;農業產業結構與周邊省份趨同等。In the end, the paper summarizes and evaluates the above strategy, finds the strongpoint and shortage. moreover it sets down the sales plan and improves strategy for 2006. the paper studied marketing strategy adopted by hunan science - infor electronic system equipment co, who is the special dealer of omron industrial automatic control products, reached the conclusion that marketing strategy will directly influence enterprises ’ sales and the following aspects should be taken into consideration : i ) thoroughly analyzing individual conditions and market environment in combination with products ’ characteristics to find out opportunities as well as challenges ; ii ) fully making the most of one ’ s own advantages and opportunities, least competing with the
本文通過對科信電子特約經銷歐姆龍工控產品營銷策略的研究,得到如下結論:營銷策略將影響企業銷售成績,在制定營銷策略時應注意, ( 1 )認真分析自身條件和市場環境特點,結合產品特性,發現機遇和挑戰; ( 2 )方案設計時要充分發揮企業優勢和市場機遇,在實力較弱的情況下,盡量避免挑戰市場領導企業; ( 3 )在實踐中逐步調整營銷策略,並分階段實施以適應環境的變化; ( 4 )銷售情況和利潤情況的分析最能說明營銷策略好壞與否,在制定營銷策略時就要關注銷售額與利潤的平衡。We will strive for a breakthrough in the capital in terms of economic development, urban construction, social progress and people ' s living standard, so that, by 2008, the per capita gdp of beijing will exceed $ 6, 000 and the economic, urban and social development will be drastically accelerated
力求首都在經濟發展、城市建設、社會進步和人民生活改善等方面實現突破性的變化,到2008年,全市人均國內生產總值達到6000美元以上,經濟現代化、城市現代化和社會現代化水平大大提高,構建起現代化國際大都市的基本框架,使北京進入一個嶄新的發展階段。The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發,建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程,詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置;推導了mur一階和二階邊界條件在圓柱坐標下的差分格式;給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術;最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場,並分析了天線的一些參數的變化對天線輸入阻抗的影響,得出了一些有用的結論。Of course, the next big step for chinese space astronomy would be to deploy a satellite dedicated only for astronomical research. there are currently a few projects in the planning stage, including a hard x - ray all - sky survey satellite the hard x - ray modulation telescope mission, and a " microsatellite " weight less than 100 kg mission to study long - term variability of stars and galaxies space - based multi - band variable objects monitor
當然,下一步首先應是發射專門用作天文研究的衛星,目前有幾個計劃正處于策劃階段,包括建造一枚作硬x射線巡天觀測的衛星硬x射線調制望遠鏡, hxmt和一枚微型衛星重量不逾100公斤,來研究恆星和星系的長期變化空間變源監視器, svom 。The research showed that : from january to march, the acreage average ozone gross gathered, which was synchronized with the increase of the frequency of strong ssw event. furthermore, the change tendency of ozone gross in the atmosphere break forward and backward 1990. after the1990s, ozone gross in the atmosphere appeared negative anomaly in the mid and high latitude of north hemisphere from january to march, which was consistent with the obvious descent of appearance frequency of strong ssw event after the 1990s
分析表明: 1至3月,臭氧總量的面積平均逐漸增高,這與強ssw事件頻數1至3月增高同步;此外,大氣臭氧總量趨勢變化以1990年前後存在明顯的突變, 90年代以後,北半球中高緯1 ? 3月間大氣臭氧總量處于負異常階段,這和90年代以來強ssw事件發生頻數明顯下降相吻合。When it comes to the research about the post - liquefaction behavior of saturated sand, the situation is not so famous. the current research is supported by the national science foundation project of large ground displacement due to seismic liquefaction ( no. 59809004 ), and in this thesis the basic aspects about the post - liquefaction behavior of saturated sand has been thoroughly investigated. the main contents of the current research are as follows : in order to investigate the behavior of saturated sand, a multi - functional tri - axial test equipment has been designed
飽水砂土地震液化引起的地面大變形會對液化區的各種結構產生災難性的破壞,在過去的幾次大地震中均發現有因地面大變形而導致的破壞現象,但目前對該問題的研究較為欠缺,有關飽水砂土液化問題現有的研究基本都局限在初始液化之前,在飽水砂土地震液化的影響因素、產生的機理及條件、液化勢的判別等方面積累了大量的研究成果,而液化后問題的研究才處于起步階段。Based on the commonly used strip theory with the extension of taking into account the instantaneous variation of the wetted hull surface during the motion and its effects on the ship hydrodynamic characteristics, this dissertation mainly calculates the ship motions and loads in waves in time domain and elementarily investigates some nonlinear characteristic of ship motion and hydrodynamic coefficient. it is hoped that the research had an engineering value for the predication and evaluation of seakeeping performance in the concept ship design stage
本文基於擴展的切片理論,計入船體運動時濕表面的變化及其對船體流體動力性能的影響,在時域內計算了船舶在波浪中的運動和載荷,並對船舶水動力系數及運動中的一些非線性因素進行了初步的探討,本文的研究對船舶設計階段的耐波性能評估具有工程實用價值。分享友人