The second-order Boolean difference was obtained by double transform operations to produce new product items, and the same product items were deleted.

二阶布尔差分通过两次变换产生新积项，并删除相同积项来得到。

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Once the initial product backlog is in place, there are many opportunities to discover new items.

一旦产品待办事项列表有了雏形，就会有很多识别新待办项的机会。

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Each day the developer takes more items from the product backlog, each day the build contains more implemented items, and each day some new work may be added to the product backlog.

每天，开发人员从产品堆积中取走更多的条目，每天，产品构造包括更多的实现条目，并且每天都有一些新的工作会被添加到产品堆积中。

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Denise Incandela, president of Saks Direct told WWD the company plans to lure those bargain-hunting fashionistas over to full price merchandise on saksfifthavenue.com by displaying tantalizing product shots of new items on the Fashion Fix site.

FORBES: Saks Slides Into Competitive Position With Its New Dedicated Flash Sale Site

With often-superfluous new product flowing in, and slow-moving items being pulled too soon, the only profit went to the shipping company, moving tens of thousands of CDs to and from Tower outlets.

FORBES: The Tower That Fell

The company says it has more than 97 million active users worldwide, approximately 200 million live product listings and more than 10 million new and deleted items daily.

FORBES: Magazine Article