营销人员必须明确证实其在产品包装上做的广告，并将这些广告限定为一个具体的益处，例如有多少产品被回收利用。
Marketers must qualify their claims on the product packaging and limit them to a specific benefit, such as how much of the product is recycled.
据此逻辑，提高效率而压缩单位成本的方法就是限定产品种类，并且进行标准化批量生产。
According to this logic, the way to increase efficiency end drive down unit costs is to limit product variety and produce a standardized product in large volumes.
请注意Advanced Search选项，它可以让您细化对每个目标的搜索，例如将搜索限定在IBM产品的某个特定品牌。
Note the Advanced search option, which lets you tailor your search for each target, such as limiting the search to a specific brand of IBM products.
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