... 零点人口增长 zero population growth 零度人口增长 zero population growth; zeropopulationgrowth 人口坏增长率 mechanical growth rate ...
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mechanical growth rate of population 城市人口机械增长率
mechanical growth rate of plpulation 城市人口机械增长率
mechanical growth rate of oulation 城市人口机械增长率
The different mechanical performances of the modified wood all increased with the increase of liveweight growth rate in a large scale.
随着增重率的增大，处理材的各项力学性能均有较大提高。
In order to show the trees better in nature, based on diameter variety rate mechanical model, tree growth simulation 's integrated mechanical model is proposed.
为了更好地表现树木在自然环境中的生长形态，在基于直径变化率的趋向性力学模型基础上，提出了一种模拟树木生长的综合力学模型。
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