为了解决这个问题，分代收集器必须显式地跟踪从老对象到年轻对象的引用并将这些老到年轻的引用加入到小的收集的根集中。

To address this problem, generational collectors must explicitly track references from older objects to younger objects and add these old-to-young references into the root set of the minor collection.

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研究两个多项式的根的相对分布的显式判定问题，得出两个三次多项式的根的相对分布以及二次和四次多项式的根的相对分布的显式判定。

We obtain the relative distribution of roots of two polynomials whose degrees are respectively 2 and 4, and we answer the same problem about the two polynomials of degree 3.

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