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。
Without this muscular action, inhaling is like sucking air out of a balloon—the narrow passages tend to collapse.
如果没有这种肌肉运动，吸气就像从气球里吸出空气一样——狭窄的通道往往会坍塌。
Without this muscular action, inhaling is like sucking air out of a balloon—the narrow passages tend to collapse.
如果没有这种肌肉运动，吸气就像从气球里吸出空气一样——狭窄的通道往往会坍塌。
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