stepwise construction 中文意思是什麼
stepwise construction
解釋
分階段施工- stepwise : adj. 1. 逐步的，逐漸的，分段的。2. 【音】轉換音級的。adv. 按階段地，逐步地。
- construction : n 1 建築，結構，構造，架設，鋪設；建設；設計；工程；建築法，構造法，建築物；【戲劇】搭置，布景，...
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All the urban logistics requirements are forecasted by the method of time sequence deduce and muti - factors stepwise linearity regression, including volume of freight, configuration of goods, organize volume of freight, distributable volume of freight and its distributing. according to all the forecast result and other conditions, such as transportation and so on, the layout of beijing distribution parks are made certain, and the scale of each distribution park is calculated in use of space - time consume method. at last, a suitable investment, construction and operation system of beijing distribution park is advised on the reference of developed country experiences
在對物流節點的概念、功能、作用、分類、層次總結和概括的基礎上，結合物流的發展趨勢和大中城市的實際，分析了規劃物流園區的必要性；提出了城市物流需求預測技術路線后，運用時間序列第推、多元逐步線性回歸等科學方法，對北京的貨運量、貨物結構、組織量和適站量、適站量的方向性等物流需求做了預測；學習借鑒國外物流園區選址的經驗，根據貨物適站量方向性預測、北京市的交通體系等實際情況，確定了北京物流園區布局；把不同方向特徵年貨物適站量合理的分配到相應的物流園區中，運用時空消耗法確定了各個物流園區的規模；在對每個物流園區逐一分析后，借鑒國外的經驗，提出了適合北京的物流園區投資、建設、運營機制。 -
This paper mainly carries on research into quantity, degree and depth of luc, and landscape change degree in different economic zones of chongqing, comparative study of human driving forces causing different luc from qualitative and quantitative respects in different economic zones of chongqing, further investigation with cultivated land change and construction land change and driving force through analyzing proper human driving forces using principal components " analysis, multi - linear regression model, stepwise regression model, quantitative prediction of cultivated land and construction land in the following 10 years in the sample areas with the help of grey trend prediction model such as gm ( 1, 1 )
本研究主要進行了不同經濟區土地利用變化數量、變化程度（速度、速率） 、深度以及景觀變化差異研究；從定性和定量兩個方面對引起不同經濟區樣點土地利用變化差異的人類驅動力進行對比性研究；通過選取適當的人類驅動力因子，利用主成分分析法、多元線回歸模型、逐步回歸分析法對人類驅動力所引起的不同經濟區的耕地、建設用地的土地利用變化進行深入研究；利用灰色動態預測模型gm （ 1 ， 1 ）對未來10年內樣點區耕地、建設用地變化進行預測性研究。
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