格林定理 的英文怎麼說
中文拼音 [gélīndìnglǐ]
格林定理
英文
green's theorem-
Klingelnberg cyclo - palloid spiral bevel gear has construction cramped, excellent transmission quality, low noise and loaded vehavior, it ’ s the main form of gear drives in the bevel gear ’ s technology field. it ’ s cyclo - palloid system, two - part cutter head and high power gears ( hpg ), has certain technology particular than gleason spiral bevel gear. systemic analysing the manufacture principle and meshing principle of klingelnberg cyclo - palloid spiral bevel gear, for accomplishing design theory and analysis method, for enhancement manufacture precision and loaded behavior, for promotion and applied in engineering field, have important theory value and actuality meaning. main work of the paper is tooth form emulation and tooth contact analyse of klingelnberg cyclo - palloid spiral bevel gear
克林貝格（ klingelnberg ）延伸外擺線齒錐齒輪結構緊湊、傳動性能優良、噪聲小、承載能力高，是錐齒輪技術發展的主要齒制，其連續切削法，雙層刀盤技術和硬齒面刮削法（ hpg ）相對于格利森制齒輪有一定的技術特點。系統的分析這種齒輪的加工原理和嚙合機理，對完善其設計理論和分析方法，提高加工精度和承載能力，在工程中推廣應用具有重要的理論價值和實際意義。Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located
首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method
在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。From the perspective of tourism development, through the analysis of advantages of qingshen, in terms of favorable geographical location, graceful landscape environment and profound cultural foundation, this paper proposed to develop qingshen as a landscape garden city, and put forward the development strategy centering on the characteristics of " mountain, water, city and culture "
從旅遊發展的角度，通過對青神縣城優越的地理區位、優美的山水城市空間環境、獨特深厚的文化底蘊等優勢條件的分析，提出其縣城景觀風格定位為「山水園林城市」的設想，並圍繞突出「山、水、城、文化」等城市特色景觀構成要素提出開發策略。Psychologist dr colin gill says : " by the age seven children have formed the characters that will dictate what jobs they go for
心理學家科林吉爾說： "孩子七歲的時候就能形成一定的性格，而這一性格將支配他今後從事什麼樣的工作。In this paper, in order to solve the difficulties in the rain pipe construction in jianyu road of yulin city, the pipe - pushing technique for the hand - type tool pipe in the sand soil layer has been researched by experiments in which many practice problems were considered such as the movement and deformation of sand soil, the difficulties for the pipe to enter the scheduled work soil, the collapse of excavation surface, the departure of pipe center and the difficulties to correct this departure. by both the calculations for the stabilities of back - supporting soil body and excavation surface and the theoretical analysis on the reasons for the departure ' s producing, some construction techniques were introduced and adopted in this paper which include not only the change and reinforcement to both the back - supporting soil body and the scheduled work soil body but also the settings of pipe cap, lattice and correcting system on the head of the tool pipe
本文針對榆林市建榆路雨水管道中遇到的技術難題，進行手掘式工具管砂土層頂管法施工技術試驗研究，在研究中考慮砂土層存在的后靠土體移位、變形，工具管難以進入出洞土體，挖掘面易坍塌、管道中心易偏差及難糾偏等問題，通過對后靠土體和挖掘面的穩定計算及偏差產生原因的理論分析，提出並採用后靠土體換填加固，出洞土體換填加固，以及在工具管頭部設置管帽、格柵、糾偏系統等技術措施Based on the measured data and the model of plotted watershed hydrology, the benefits of water reduction by different harnesses of soil and water conservation are firstly separated in watershed scale, which are the basis of evaluating the effect of rebuilding ecological environment of the loess plateau on the water resources of the yellow river
在實測資料的基礎，藉助流域網格劃分的模型計算方法，首次在流域尺度內將水土保持工程措施和生物農業措施在減少地表徑流中的作用分割開來，從而為定量評價黃土高原以林草植被建設為主的生態環境治理對黃河流域水資源的影響提供數據基礎。The main purpose of this study is to analyze the timber forest property right system and property right system arrangement, clarify the basic structure and operation principles, and describe the mechanism of creation and change of the property organization, propose property right arrangement of different forms through the description of definition of timber forest property right and property transaction type to build the link between the forest operators and the timber - consuming enterprises and provide the theoretical support for the ultimate building of the modern forest property right system of “ unambiguous property right and operation main body, clear responsibility, strict protection of interests, smooth and standardized transaction and effective regulation and service “
本文研究的主要目的是從理論上解析農區用材林產權制度與產權制度安排，廓清林權市場的基本構造和運作原理，闡述產權組織產生與演化機理，通過用材林產權界定和產權交易類型的描述，給出不同形式的產權組織安排，以期建立營林者與用材企業的有機聯系機制，為最終建立「產權歸屬清晰、經營主體到位、責權劃分明確、利益保障嚴格、流轉規范順暢、監管服務有效」的現代林業產權制度提供理論上的借鑒。Sun hung kai real estate agency sales director anita chan said, " to make the vineyard stand out as a chateau residence in a spectacular vineyard setting, we have decided to spend an additional 30 million on landscaping. this takes the total investment in the green landscape even higher to 130 million
新地代理銷售總監陳秀賢表示：為了將葡萄園打造為城中最有酒莊風格的豪宅別墅，新地不惜工本，決定額外投放3 ， 000萬元提升園內及園外的園林綠化質素，令環境綠化的總投資額高達1億3千萬元。This paper has an analysis in theory and case study of freevm and cvm, and introduces the environmental shadow price calculated by applying the two methods to environmental impact value assessment of forestry project
對森林資源環境效果評價法和條件價值評價法，進行了理論思考和案例研究，並把所確定的影子價格引入到項目環境影響價值評價中。They are agricultural productive materials price growth rate, sown area of grain crops growth rate, grain yield per area growth rate -, natural disaster covered grain areas growth rate, net grain import change rate, grain reserve change rate, population growth rate, per income growth rate, city and town population growth rate, food industry production value growth rate, year - end pig number growth rate, medical & pharmaceutical and textile industry production value growth rate, grain marketization degree, inflation rate using the previous year as base year ( preceding year = 100 ), public grain purchases price growth rate, investment in agricultural science and technology growth rate, investment in agricultural infrastructure growth rate, growth rate of graduates number from agriculture, forestry, science & technology universities and colleges and specialized secondary schools, government expenditure for agriculture and agricultural credit growth rate, international grain price growth rate, rmb exchange rate growth rate, last grain price growth rate, economic crop price growth rate, meanwhile, a new method is attempted to be used in this paper and the grain price early - warning problem is transformed into machine learning problem by introducing statistic learning theory and svm method which are gaining popularity in machine learning field at present in the world
在此基礎上，篩選出23個警兆指標：農用生產資料價格增長率、糧食播種面積增長率、糧食單產增長率、糧食受災面積增長率、糧食凈進口量變化率、糧食儲備變動率、人口增長率、人均收入增長率、城鎮人口增長率、食品工業產值增長率、豬年末頭數增長率、醫藥紡織工業產值增長率、糧食市場化程度、以上年為基年的通貨膨脹率、國家糧食定購價格增長率、農業科技投入增長率、農業基礎設施投入增長率、農、林、科技高校大、中專畢業生人數增長率、財政支農資金比重及農業信貸增長率、國際糧食市場價格增長率、人民幣匯率增長率、上期糧食價格增長率、經濟作物價格增長率。同時論文在預警方法上作了新的嘗試，把糧食價格預警問題轉換成一個機器學習問題，引進當前國際上機器學習領域中比較熱門的統計學習理論和支持向量機方法，用順序回歸演算法對歷史數據進行學習建立了糧食價格預警模型。Based on the characteristics and connotation of forest ecosystem services, the physical and value assessment methods, including market value method, shadow engineering price method, production cost method, opportunity cost method and administering expenditure method, were used to evaluate forest ecosystem services in yashushan natural reserve
摘要根據福建寧化牙梳山自然保護區森林生態系統的特徵和森林生態系統服務功能的內涵，採用物質量和價值量相結合的評價方法，使用市場價值法、影子工程價格法、生產成本法、機會成本法、治理費用法等定量評價了寧化牙梳山自然保護區森林生態系統服務功能經濟價值。Even as late as the early 1980s ， though the original bretton woods mechanism had by then essentially collapsed internationally ， the australian authorities were still attempting to manage the exchange rate under a so - called crawling peg system ， with the object of stabilising the price of the dollar
甚至到了一九八十年代初，盡管那時原來的布雷頓森林制在國際上已經基本垮臺，澳大利亞政府仍試圖根據所謂的「蠕動釘住」制來管理貨幣的兌換率，以穩定澳元的價格。Mr. zhu fuqing, secretary of yunxiao county committee of cpc stated, we follow the guideline set by lu zhangong, secretary of provincial committee of cpc during his visit to zhangjiang estuary national nature reserve to ensure that both development and conservation to complement of each other. taking the opportunity of a good working relationship between zhangjiang estuary national nature reserve and mai po nature reserve, we will prepare a high quality conservation plan for the protection of mangroves at zhangjiang estuary. by incorporating international reserve management experiences into our reserve management plan, we hope to turn the reserve as one of the most prominent sites along the south east coast
雲霄縣委書記朱福清先生表示： 「我們將根據省委書記盧展工視察漳江口紅樹林時作出的要求「要保護好，利用好」 ，充分利用漳江口保護區與香港米埔締結友好合作關系的有利時機，高起點高規格來規劃建設漳江口紅樹林，利用國際先進的管理技術和經驗，制定合理可行的管理計劃，把漳江口紅樹林建設成為東南沿海的一顆璀燦明珠」 。Strengthen young forest cradle management, strict according to cradle cut regulations, fixed rotate carries out exercise
加強幼林的撫育治理，嚴格按照撫育採伐規程，定期輪換實施作業。分享友人