Based on the assumption of stochastic customers' arrival, stochastic model is divided build for sale policy for bookstores with and without sale duration limited.

基于顾客随机到达的假定，分别建立了无销售期限和有销售期限的书店销售策略的随机数学模型。

youdao

Nowadays, there are hundreds varieties of moon cakes on sale a month before the arrival of Moon Festival.

现如今， 有上百品种的月饼在中秋节到来之前就已经开始销售了。

youdao

There are hundreds of varieties of moon cakes on sale a month before the arrival of the moon Festival this year.

今年中秋节到来之前，上百种月饼已经开始出售。

youdao

The initial iPad gave way to the iPad 2, which will remain on sale at a lower price following the arrival of the new model.

WSJ: Why Doesn't the New iPad Have a Name?