Then, the constraints of transport structure optimization are discussed from two aspects: personal selection and policy influence. Based on the analysis, the mathematical pr…
然后从个人选择导向和政策导向两个角度，分别研究了交通结构优化的约束条件。
Based on time dependent band transport model, the evolutional equation of PR solitons is established.
基于和时间有关的带输运模型，建立了光折变孤子的演化方程。
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