Definition: A common knot used in many circumstances on sailboats, such as to tie a loop of line around a piling, stanchion, or any other fixed structure.
在帆船上使用场景广泛的一种绳结，如用于将一股绳索围绕套在木桩，支柱，或任何其他固定结构上。
This paper discusses the application of knot theory to quantum chaos, reveals the topological structure of the chaotic solution of quantum systems.
讨论了纽结理论对量子混沌的应用，并揭示了量子系统中混沌解的拓扑结构。
The utility model has the advantages of simple structure, convenient use, and fast knot, practicality and economical.
本实用新型结构简单，使用方便，打结快捷，经济实用。
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