windsock

名词 windsock:

1. a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
   同义词：wind sock, sock, air sock, air-sleeve, wind sleeve, wind cone, drogue

wind.sock

n.（名词）
A tapered, open-ended sleeve pivotally attached to a standard, that indicates the direction of the wind blowing through it.Also called air sock ,wind cone ,wind sleeve
风袋：框轴固定在一个支座上的两头开放的锥形袋子，用来显示吹过袋子的风的方向也作 air sock,wind cone,wind sleeve