通过对成本模型的分析，找出了VMI在开始阶段难以实施的原因。

Through an analysis of model, reason why VMI is difficult to implement at the beginning has been found out.

youdao

此外，今年的销售表现也难以与去年进行比较，原因是去年美国实施经济刺激法案，使得销售商销售额大增。

In addition, the sales performance this year, it is difficult to compare with last year because last year the United States to implement economic stimulus bill, the vendor increase sales.

youdao

此外，今年的销售表现也难以与去年进行比较，原因是去年美国实施经济刺激法案，使得销售商销售额大增。

In addition, the sales performance this year, it is difficult to compare with last year because last year the United States to implement economic stimulus bill, the vendor increase sales.

youdao