核心原因只有一个：躺在功劳簿上睡大觉，把单一产品的成功，当成了永恒的护城河。
The German firm supplies about three-quarters of the bone cement needed in the NHS. The product is used in more than 1,000 operations a week, mostly in knee replacements, but also in some hip and shoulder replacements.
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RotomIntroduced in Gen IV (2006)
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