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本文綜述了測繪學科的最新進展,給出了傳統(tǒng)測繪學的概念和特征,主要論述了測繪學科新技術的發(fā)展現(xiàn)狀,對全球定位系統(tǒng)、衛(wèi)星重力測量、遙感、地理信息系統(tǒng)、寬帶網(wǎng)絡和虛擬現(xiàn)實這幾項新技術分別給出其定義、學科特征和最新進展動態(tài)。文中最后給出了測繪學的現(xiàn)代概念,闡述了測繪學科正在向地球空間信息科學跨越和融合。..
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1.簡介在當今一個漸趨競爭性特點的商務環(huán)境里面,以競爭的方式來贏得客戶的活動越來越激烈。由于一些新穎先進的方法引入,使得在一個新的市場中競爭的公司現(xiàn)有和牢固的方法和理念變得脆弱。成功駕馭這些變化的因素之一是持續(xù)的改進和技術的革新。正因為這事實,客戶關系管理觀念已經(jīng)進展成為一個維持客戶長期關系的策略..
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Along with the development of the ages, the technique that is nowadays is also gradually perfect, the competition plays more and more strong; the operation that list depends the artificial has already can't satisfied with the current manufacturing industry foreground, also can't guarantee the req..
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The bursting of the dot-com bubble in the fall of 2001 marked a turning point for the web. Many people concluded that the web was overhyped, when in fact bubbles and consequent shakeouts appear to be a common feature of all technological revolutions. Shakeouts typically mark the point at which a..
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Commonly Used structural SystemsWith loads measured in tens of thousands kips, there is little room in the design of high-rise buildings for excessively complex thoughts. Indeed, the better high-rise buildings carry the universal traits of simplicity of thought and clarity of expression.It does n..
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文摘:聚合物精密注薂@尚圖際醯撓跋煲蛩兀ň苣>擼⑺芑目刂憑齲蘢⑺芄炭刂坪推淥募撲慊刂萍際醯木蘢⑺。諒T┮蛩亟辛頌致郟⒏柘嚶Φ慕餼齜槳福詈蠼檣芰艘恍┫冉某尚圖際。关键词:精锰d⑺,注射成型机精锰d⑺薌際,精锰d⑺苣>? 近年來,隨著電子、通訊、醫(yī)療、汽車等行業(yè)迅速發(fā)..
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Switching power supply work in high frequency, high pulse state, are analog circuits in a rather special kind. Cloth boards to follow the principle of high-frequency circuit wiring. 1, layout: Pulse voltage connection as short as possible, including input switch connected to the tr..
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美國的工程建筑公司幾十年來一直控制著國際建筑市場,但近來世界上發(fā)生的事件改變了它的主導地位。為了調查今后十年對工程建筑競爭產生影響的推動力及趨勢,由建筑工業(yè)研究院的"2000年建筑特別工作組:發(fā)起一項稱為“2000年建筑市場競爭分析”的研究項目。該研究項目考察了一些影響競爭的因素,包括下列方面:企業(yè)能力塑..
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AbstractThe crack problem of concrete is a widespread existence but again difficult in solve of engineering actual problem, this text carried on a study analysis to a little bit familiar crack problem in the concrete engineering, and aim at concrete the circumstance put forward some prevention, p..