主管部门说，他们要求交运公司减少非基础物品的运输，并在可能的情况下向其提供绕行路线。

Authorities said they asked transport and shipping companies to curtail deliveries of nonessential goods and were offering alternate routes where possible.

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其次，在做出若干假设的基础上，采用系统分析的方法，建立了两部门经济增长的非均衡关系模型；

Secondly, we establish two_sector economic growth relationship models by applying system analytic approaches under some assumptions.

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