It would cause balloon collapse and yarn breakage in ring spinning, should the ring and traveler approach this neck portion.

环锭纺纱时，如果钢领钢丝圈位置逐步接近该气圈颈部就将造成气圈崩溃和纱线断头。

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Kerr showed that a spinning black hole would collapse not into a point, but to a "ring of fire."

克尔表明，旋转的黑洞会崩溃没有把一个点，而是一个“火环。”

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