If the available quantity from the stock table for the requested item is less than the quantity ordered, the transaction rolls back to the neworder savepoint.

如果所请求商品在stock表中的可用数量小于订购的数量，那么事务将回滚到neworder保存点。

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Then each order the customer places with reference to this contract will decrease the available quantity of this contract.

那么该客户参照该合同下达的每个订单将减少该合同可用的数量配额。

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The quantity of surface water and ground water, water resources gross and its available quantity of these years are calculated.

计算了郑州市地表水资源量、地下水资源量、水资源总量和水资源可利用量。

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Civilizations are constrained directly by the quality and quantity of available safe drinking and subsistence water.

UNESCO: Natural Sciences

"You've got computers taking advantage of the sheer quantity of information available, and they can make enormous amounts of money if they buy and sell quickly enough, " says Rauch.

FORBES: Hacking Capitalism

It is not just the quantity of technological information available, but its diversity as well.

FORBES: Trading Places: Commerce Drives Science And Technology In Africa