打结，捆绑

动画结

https://www.animatedknots.com/boating-knots

捆绑

http://www.inquiry.net/outdoor/skills/b-p/wb/lashings.htm

绳结说明书

https://www.scoutingresources.org.uk/downloads/knots_downloads.html

维基百科上的“绳结”

https://en.wikipedia.org/wiki/Knot