优化现金使用——利用租赁方式，可以减少企业在车辆方面的资金投入，拥有车队的使用权，提升企业资金的创效能力。

Optimize use of cash - use of leasing, companies can reduce capital investment in vehicles, has the right to use teams to enhance the ability of corporate funds Chuangxiao.

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结果表明，优化前后两种ARMA模型均可对航空发电机的使用寿命实现 预测效能。

The result shows that these two models can realize the function of predicting the aero-generator's service life.

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