As we all known, with the founding of euclidean geometry in ancient greece, with the development of analytic geometry and other kinds of geometries, with f. kline " s erlanger program in 1872 and the new developments of geometry in 20th century such as topology and so on, man has developed their understand of geometry. on the other hand, euclid formed geometry as a deductive system by using axiomatic theory for the first time. the content and method of geometry have dramatically changed, but the geometry curriculum has not changed correspondingly until the first strike from kline and perry " s appealing
縱觀幾何學發展的歷史,可以稱得上波瀾壯闊:一方面,從古希臘時代的歐氏綜合幾何,到近代解析幾何等多種幾何的發展,以及用變換的方法處理幾何的埃爾朗根
綱領,到20世紀拓撲學、高維空間理論等幾何學的新發展,這一切都在不斷豐富人們對幾何學的認識;另一方面,從歐幾里得第一次使用公理化方法把幾何學組織成一個邏輯演繹體系,到羅巴切夫斯
基非歐幾何的發現,以及希爾伯特形式公理體系的建立,極大地發展了公理化思想方法,不管是幾何學的內容還是方法都發生了質的飛躍。
Studies on spermatogenesis and oogenesis in palaemon modestus jiang ye - qin ( chemistry department, huzhou teachers coliege, huzhou 313000 ) palaemon modestus belongs to genus palaemon, family palaemonidae, caridea, natantia, decapoda, class crustacean. lt is a kind of freshwater prawn across china and especially abounds in the taihu lake which is regarded as one of the " three delicacies " of the taiha lake. as for the researches on palaemon modestus, v / e can only refer to spermatogenesis of freshwater shrimp exopalaemon modestus ^ ruang hai - xia et al, 2001 ), studies on reproductive biology of exopalaemon modestus l. the structure and development of the male reproductive system ( huang hai - xia et al, 1999 ) and studies on freshwater prawn in the taihu lake ( yan sheng - liang, 1999 ). on the bases of their researches and with the help of tem, i have made further researches on sperm ultrastructure, spermatogenesis, oogenesis and mature oocyte ultrastructure in palaemon modestus
秀麗白蝦palaemonmodestus屬甲殼
綱crustacea十足目decapoda游泳亞目natantia真蝦部caridae長臂蝦科palaemonidae長臂蝦屬palaemon ,是我國南北均產的淡水蝦,其中太湖產量尤其大,與太湖銀魚、鱭魚並稱「太湖三寶」 。有關秀麗白蝦的研究僅見秀麗白蝦雄性生殖系統的研究(黃海霞等, 1999 ) 、秀麗白蝦精子發生的研究(黃海霞等, 2001 ) 。本人在前人工作的
基礎上,利用透射電鏡技術( tem )進一步研究了秀麗白蝦精子的形態、結構及精子的發生過程,同時還研究了秀麗白蝦卵的發育過程,從卵原細胞到卵黃發生前的卵母細胞、卵黃發生的卵母細胞及成熟卵細胞,各期卵細胞的形態結構特點及各部分結構的變化情況。
Abstract : hill mourning the special and advantageous natural conditions, ailaoshan become enormous natural biological species of germplasm resources gene pool, yunnan as " animals and plants " kingdom of " natural museum " and " specimen garden, " is a variety of integrated science experiments, is the ideal many disciplines scientific investigation and research base, is the scientific expedition, adventure, photography, research and returned to the natural forest of choice for this paper, through the ailaoshan reptilia from the investigation, ailaoshan the right reptilia is a more systematic and well described
摘要:哀勞山特殊而優越的自然條件,使哀牢山成為巨大的天然生物種的種質資源的
基因庫,成為雲南"動、植物"王國中的"天然博物館"和"標本園" ,是多種自然科學的綜合實驗地,是眾多學科的理想的科學考察和研究
基地,是開展科考、探險、攝影、科研、回歸自然、森林的首選之地,本文通過對哀牢山爬行
綱的抽取調查,對哀牢山的爬行
綱給出一個較系統的,完善的敘述。
Based on 《 clinical laboratory medicine 》 edited by lifan xiong, the brief includes collection and preservation of blood specimen, general examination of blood, thrombosis and hemostasis, blood group and transfusion, urinalysis, examination of cerebrospinal fluid, serous cavity effusion, excreta and secretion
本教學大
綱根據熊立凡主編的《臨床檢驗
基礎》的血液標本採集和保存、血液一般檢查、血栓與止血、血型檢驗及輸血、尿液檢查、腦脊液、漿膜腔積液、排泄物和分沁物檢查的內容,結合當前新理論、新知識、新技術。
1. 4 based on the attribute db, the soil classification graphic db is set up by using arc / info cis. the soil order, suborder sketchs and basic classification unit ( series ) sample maps, make the distribution of soil in hubei province clear at a glance
4在屬性數據庫的
基礎上,利用arc infogis建立了湖北省土壤分類圖形數據庫(空間數據庫) ,運用計算機編制和輸出了全省土壤系統分類土
綱、亞
綱概圖和
基層分類單元(土系)樣塊圖,使全省土壤分佈狀況一目了然。
1. 3 under inquiring, inspecting, contrasting and analysing the information of soil basis ( series ) classification, the soil taxonomy of hubei province is established. and the soil for hubei province are divided into 10 soil orders, 16 suborders, 35 great groups and 54 subgroups, contrasted with international soil systematics such as the american soil taxonomy, the fao world soil map legend unit and the world soil resource reference basis, any sort of soil in hubei province has each own apprepriated places. this conveniently joins the soil taxonomy and the achievements in soil research in hubei with the international convention and realizes the international communication and application
3通過全省土壤
基層分類(土系)信息的查詢檢索和分析比較,擬定了湖北省土壤系統分類,將全省土壤劃分為10個土
綱、 16個亞
綱、 35個土類、 54個亞類,並與美國土壤系統分類、 fao世界土壤圖例單元和世界土壤資源參比
基礎等國際土壤分類系統進行對比,確定其相應位置,便於湖北省土壤分類和土壤研究成果與國際接軌,實現我國土壤信息在國際上交流和應用。
Tyndall will use a different syllabus for later pilots
廷德爾空軍
基地將為后來的飛行員準備一份不同的訓練大
綱。
Krumm : the first few pilots who learn to fly the raptor at nellis and tyndall will use the same pilot training syllabus we used here for diot & e
克拉姆:最初在內爾尼斯和廷德爾空軍
基地學習如何駕駛猛禽的少數飛行員將使用和我們這里訓練試飛員一樣的飛行員訓練大
綱。
Aba international will administer and share the cost of a customized training program based on the aba s " business of banking school " curriculum
美國銀行家協會國際部將負責實施一個
基於該協會「銀行業務學院」大
綱、但適合中方具體情況的培訓課程,並分擔其費用。
3. a dimensionless parameter i. e. breaking symmetry a is defined which reflects the characteristic of molecular arrangement in non - symmetric lc cell, the expression is where d is the distance between the maximal tilt angle 0m and the below substrate, l is the thickness of lc cell
定義了一個反映不對稱液晶盒液晶分子排列對稱性特點的無量
綱量? ?對稱破缺,定義式為= ( d - l / 2 ) / ( l / 2 ) ,其中d為傾角最大值_ m距下
基板的距離, l為液晶盒的厚度。
To play “ competitions for excellent companies and soldiers ” ( “ two competitions ” for short ) widely is the effective approach to carrying out the “ compendia of construction in military grassroots ” roundly and to inspiring the enthusiasm, initiative, creativity in officers and soldiers
在
基層廣泛開展「爭創優秀連隊、爭當優秀士兵」的「雙爭」評比活動,是全面貫徹《軍隊
基層建設
綱要》 ,激發官兵的積極性、主動性和創造性,提高
基層全面建設整體水平的有效途徑。
The dissertation has summarized the historical experience of our army competitions on wide research, analyzed roundly the requirement of the “ two competitions ” comprehensive evaluation system. it has been according as the “ compendia of construction in military grassroots ”, based on the modern mathematics and model method, been supported by the information technology and synthetically applied much method such as delphi, ahp, fuzzy, metasynthesis, wsr, etc. and also, taken the characteristic and the practical experience of the “ two competitions ” into account, the dissertation has discussed the functional structure and comprehensive evaluation index system, and also constructed the comprehensive evaluation model with the fuzzy mathematics. the dissertation has conceived firstly to put the “ two competitions ” into computer operation system
本文在廣泛調查研究,總結我軍開展爭先創優活動的歷史經驗的
基礎上,全面分析了「雙爭」活動對綜合評估系統的需求,以《軍隊
基層建設
綱要》為依據,以現代數學理論和建模方法為
基礎,以信息技術為支撐,綜合運用德爾斐( delphi ) 、層次分析( ahp ) 、模糊數學( fuzzy ) 、綜合集成( metasynthesis ) 、物理-事理-人理( wsr )等方法,同時結合「雙爭」評比自身的特點和實踐經驗,探討了系統功能結構的設計思路和綜合評估指標的構建方法,並運用模糊數學理論構建了「雙爭」模糊綜合評估模型。
Through making comparison with the stipulation of fundamental computing course in the " fundamental computing course syllabus " adopted by the ministry of education and with the similar courses in many universities and colleges, this article has made an analysis of the advantages and disadvantages of fundamental computing education offered by our college
摘要通過與教育部《計算機
基礎課程教學大
綱》中規定的計算機
基礎課程比較以及多個院校同類課程的橫向比較,分析了我院計算機
基礎課程開設的優點和不足之處。
Abstract : this paper an outline of the national fund project, bridges " s safety prediction and behavior simulation under the multi - phase coupling actions by flood water. the authors approach coupling action models among solid, liquid and gas states, while discussing bridge rupture features under these coupling actins. as one important problem of the project, physical and simulation model are discussed too in the paper. all the discussion in the paper can be a guide to deep research of the project
文摘:本文系國家自然科學
基金資助項目《橋梁抗禦洪災異相耦合破壞作用的安全性預測與模擬》研究
綱要的縮影,筆者對災害伴生過程中各物相(固態、液態、氣態)之間耦合作用形態及對橋梁破壞性認識,以及對耦合作用物理模型、模擬模型的初步探討,以期為該項目研究的展開和向縱深推進提供借鑒
The " citizens ' code of conduct " will be implemented to encourage all our people to develop the basic virtues of " patriotism and observance of law ; courtesy and honesty ; solidarity and friendship ; diligence, frugality and self - improvement ; and devotion and contribution "
貫徹落實《公民道德建設實施
綱要》在全社會倡導"愛國守法、明禮誠信、團結友善、勤儉自強、敬業奉獻"的
基本道德規范。
According to the theory of dimension analysis, the basic thoughts and methods of dimension analysis modeling in the direction of practical engineering prblems are explored
摘要在量綱分析理論的基礎上,結合工程實際問題研究了量綱分析建模的基本思路和方法。