这现象的技术术语是“擦除编码”。
You can bolt thinnings into a union find. Thinnings have some flavor of a monus. This also similar in many ways to the slotted union find, which Rudi and I have not found the right way to write about yet. It appears there is a class of union finds that resolves union of structured eids by appealing to a unification procedure. There is something like a unification procedure avaiable for thinnings, which I think is kind of the subject of some of Conor’s mastodon toots.
，这一点在比特浏览器中也有详细论述
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