main truck highway 中文意思是什麼
main truck highway
解釋
主要干線公路-
We have combined qualitative analysis and quantitative analysis to foresee the market size. firstly, we found the relative factors influencing the truck market through qualitative analysis and picked up several main factors by quantitative analysis, such as highway mileage, social fixed assets investment capital and consumption expenditure, etc. secondly, we set up four models by using those factors. the four models are a time series model, a multiple regression model, a factor regression model and an integrated model
首先,通過定性分析找到了影響我國載貨汽車保有量的相關因素,接著又進一步進行定量的分析,從而確定了公路里程數、基本建設固定資產投資額和我國社會消費支出額等為主要影響因素;然後,利用前面的分析結果構造了三個模型,即時間序列模型、多元回歸模型和因子回歸模型,並綜合幾個模型的優點建立了一個綜合的預測模型,這一部分也是全文的重點部分;最後,分析比較了各模型的優劣並給出了每個模型的適用情況。
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