实践证明，该模型有效地提高了航材管理的水平和航材储备资金的利用率。

In practice, this model is helpful to improve management level and efficiency of fund.

youdao

实践证明，该模型有效地提高了航材管理的水平和航材储备资金的利用率。

In practice, this model is helpful to improve management level and efficiency of fund.

youdao