Suppose you want to reuse the example above and add another operation that updates the product inventory, decreasing the product quantity for each item in the purchase order.

假设您想重用上面的例子，并加上一个更新产品库存，即减去购物订单中每项产品的产品数量的操作。

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The calculation method of product quantity should be implemented under national regulations and provisions.

产品数量的计量方法，按国家的规定执行；

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The result indicated that potato flour had distinct improving effect on the product quantity, tenderness and volume of the bread, but only little effect on the elasticity;

结果表明，添加马铃薯粉对面包产量、 柔软度以及体积具有比较明显的改善效果，但是对弹性效果不太明显；

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So basically the idea is that the more these firms produce, so the more the total quantity produced q1 + q2, the lower is the price in the marketplace for this product.

核心思想就是两家企业生产得越多,即产量,q1 + q2,越大,该产品的市场价格就越低

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During his D13 interview Tim Cook once again reiterated his belief that Apple should not chase down a high-quantity product range but should continue to focus on products that change peoples lives.

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Sneakpeeq offers limited quantity of each product, typically 200 or 300 items.

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Part of the reason is the sheer quantity of cash needed to make a media product that attracts notice.

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