它将适时转化或者瓦解，随着它无法再保持下去的时候，将达到一个临界点。
It will in time transmute or disintegrate, as a point will be reached when it cannot remain any longer.
临界点是指某事或某人不能再继续承受的时刻。
The breaking point is the moment at which something or someone can take no more.
物理上看，在一个特定的临界行波速下会形成自发的周期性分离再附流，每个波谷的分离区捕获一个稳定的涡环。
Physically, at a special critical wave speed the flow may have a naturally periodical separated-reattached pattern, with each wave trough capturing a stable vortex ring.
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