Put forward to establish the analytic method of model of economy of haven hinterland space.
提出了建立港口腹地空间经济模型的分析方法。
Then, based on the analysis of possible limitation of LS estimation, the ridge estimation is put forward to establish the equation of canopy density estimation.
在分析LS估计存在缺陷的基础上,提出采用岭估计建立郁闭度估测方程。
Based on theory of random energy analysis of train derailment, a new method was put forward to establish the limit value of bridge lateral rigidity with which derailment on Bridges can be prevented.
基于列车脱轨能量随机分析理论,提出了预防列车脱轨的桥梁横向刚度限值的制定方法。
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