在前人研究基础上，提出了一种新的自由充填速率计算方法。
On the basis of predecessors study, a new method for calculating free-filling rate was proposed.
在前人研究基础上，用有限差分方法建立了一个非稳态二维地温场的数学模型。
An unsteady two-dimensional soil temperature field model is established using the limited difference method in this paper.
鉴于此，本文尝试在前人研究基础上，对批判性思维的基本内涵及其能力培养问题进行研究。
On the basis of former studies, I try to research and cast lights on critical thinking and cultivation of its ability on a new point of view.
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