出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/12/20 22:22 UTC 版)
A screw picket is a metal device used to secure something to the ground. Today, screw pickets are used widely to temporarily "picket" dogs and grazing animals such as sheep, goats, and horses. Screw pickets are also used to stabilize small trees, tent poles, and other objects that are intended to remain upright.