流延成型法 的英文怎麼說
中文拼音 [liúyánchéngxíngfǎ]
流延成型法
英文
doctor-blade casting process-
The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。The whole dissertation can be divided into 9 chapters, which are mainly engaged on the comparative theories of the common balance and the partial balance, and the methodology of the demonstration and criterion economics to do the analysis and res earch on the purpose of making relatively thorough and deep assessment on the policy - making and related improvement suggestions on such areas as the implement performance of the agriculture policies, the requirement structure of agriculture, the structure of employment, the basic elements and arrangement of agriculture production, the sustainable development of agriculture and the agriculture internationalization etc. the basic innovative points of the dissertation are as follows : ( 1 ) to establish a systematic framework for the research on the policies of agriculture industry and the structure of agriculture industry ; the framework for grand agriculture industry structure ; the framework of subject relationship in the agriculture socialized service system ; the circulation framework of sustainable development for agriculture ; the model framework for corporation development for agriculture institution ; ( 2 ) to expand the external scope of the concept of agriculture ; ( 3 ) to put forward the ideas of the corporation orientation by restructuring and innovating the present agriculture operational institution ; ( 4 ) to raise the viewpoints to set up the quality standard system for agriculture produce and to initiate the same system of the internal and external trade ; ( 5 ) to offer the suggestions on guiding the development of the township and private enterprises through the industry policies ; ( 6 ) to raise the innovative viewpoint by way of the systematic analysis on agriculture and the employment structure of the countryside, the district arrangement, technological innovation and the marketing system of agriculture produce ; ( 7 ) to put forward the comprehensive thinking way to broaden the logistics services for agriculture produce ; ( 8 ) to raise the new idea of the agriculture supporting system and the policy suggestions on expanding the areas for the government to support agriculture industry, reorganization of agriculture insurance system and aid to the weak masses of the countryside
本課題是在國家農業產業政策不斷完善和產業經濟學科科學發展的背景下，從農業產業政策的實踐出發，從大農業產業結構、組織、技術、資金、勞動力、土地等資源配置以及區域布局、國內外關聯等角度，以農業產業政策與農業發展的互動關系為切入點，提出了農業產業政策調整取向，初步形成和發展了政策理論。全文共分9章，主要運用一般均衡和局部均衡比較等理論，實證、規范經濟學研究等方法進行探討，對農業產業政策實施績效、農村需求結構、就業結構、農業生產要素和布局、農業可持續發展、農業國際化等命題以及對策建議作了比較全面深入的評析。本課題研究主要有以下創新觀點：初步搭建了農業產業政策和結構理論框架，設計了政策和結構體系圖；延伸了「農業」概念外延，提出了「大農業」的構想；提出了農業產業經營組織再造和創新的公司化發展方向，設置了農業產業化、公司化發展模式圖和產業化公司模型圖；設計了農業可持續發展良性循環圖和農業資金投入效益模型圖；提出了建立農產品質量標準體系、推行內外貿一體制的觀點；建立了農業保障體系參照圖，建議通過產業政策引導鄉鎮、私營企業和「三資」企業發展；剖析農村勞動力就業結構、區域布局、科技創新、農產品市場體系；提出了加大農產品物流配送的整體思路；提出了農業支撐體系新觀念及擴大政府支農范圍、重構農業保險體系、扶持弱勢群體的政策建議。The results show that the ionosphere - weighted model or the tropospheric estimation, integrated with the partly - weigthed least squares, can improve, the success rate and the reliability of ambiguity resolution ; however, if the ionospheric delay or the tropospheric delay, which is modeled on random walk process or first - order gauss - markov process, is estimated with the kalman filter, it will reduce the success rate and the reliability of ambiguity resolution
將電離層延遲作為零均值的隨機遊走過程（電離層加權模型） ，將對流層延遲作為靜態參數，採用非遞推形式的加權最小二乘法來估計，可以提高模糊度解算的成功率和可靠性。In this paper, the principles and the main processing of new methods for preparation of ferrite powders are discussed, including self - propagating high - temperature synthesis, low - temperature combustion synthesis, mechanochemical synthesis, hydrothermal synthesis, freeze drying and supercritical fluid drying
綜述了鐵氧體粉料的新型制備方法的原理和主要工藝過程，包括自蔓延高溫合成法、低溫燃燒合成法、機械化學合成法、水熱法、冷凍乾燥法和超臨界流體乾燥法等。Abstract : in this paper, the principles and the main processing of new methods for preparation of ferrite powders are discussed, including self - propagating high - temperature synthesis, low - temperature combustion synthesis, mechanochemical synthesis, hydrothermal synthesis, freeze drying and supercritical fluid drying
文摘:綜述了鐵氧體粉料的新型制備方法的原理和主要工藝過程，包括自蔓延高溫合成法、低溫燃燒合成法、機械化學合成法、水熱法、冷凍乾燥法和超臨界流體乾燥法等。分享友人