The idea is that when the fast winds ram into the slower ones upstream, a dense rim of compressed gas forms at the interface, much like the rim of snow at the front of a plow.

• 他们的观点在于当快速恒星风向外撞击慢速恒星风时，会在撞击的界面形成压缩气体的紧致轮圈，很类似扫雪机前缘的雪圈。