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。
Traveler: Then how far ahead of time do I need to ring the bell for you to stop the bus?
当你要下车的时候别忘了按你座位旁的按钮。旅客：我应提前多久按铃请你停车呢？旅客：司机：司机：提前一分钟就可以了。
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