Virtual Stock : shows a salesperson the quantity that can be sold, taking into account both stock reserved for other orders and amounts that could arrive in the short term.

虚拟库存：显示给一个销售员可被售出的数量，既考虑到为其它订单保存的数量，同时也考虑到在短期内将增加的数量。

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After seeing the water cut-off notice, everyone began to stock water. For now, the reserved water is enough to meet need for a whole week.

看到停水通知后大家都开始储水，目前贮备已经够一个星期使用了。

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