They have further explored the issue around accumulation of knowledge and growth of economy, using an on-going two-dimensional model.
在此基础上，通过建立动态的两部门模型研究了知识增长和经济增长的问题。
A new analysis method is developed for the floating-debris' accumulation form in the reservoir based on a two-dimensional flow model according to the kinematic characteristics of the floating-debris.
针对水库库区漂浮物的运动特点，建立了基于平面二维水流数学模型分析漂浮物堆积形态的方法。
A new analysis method is developed for the floating-debris' accumulation form in the reservoir based on a two-dimensional flow model according to the kinematic characteristics of the floating-debris.
针对水库库区漂浮物的运动特点，建立了基于平面二维水流数学模型分析漂浮物堆积形态的方法。
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