NU means that there's a non-basic variable on the upper bound for that constraint.

NU表示这个约束的上界有一个非基本变量。

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Making a basic linked-list data structure persistent is the easiest exercise; here, a list in Clojure is bound to a var named "a".

持久化基本链表数据结构是最简单的；在这里，Clojure中的一个列表绑定到一个名为“a”的变量。

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Chromatin consists of coiled DNA bound to basic proteins called histones and non-histone proteins.

染色质由卷曲的DNA、组蛋白和非组蛋白组成。

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Moreover, the basic cells that make up cartilage typically are bound in a cellular matrix where they are at, which makes them difficult to move.

FORBES: Nanofiber Spheres Allow for Tissue Regeneration

They provide basic biographical information and weight loss goals and are automatically transferred to Spark Teams, small chat groups bound by similar shape-up goals.

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