Look at it this way: At a low pressure setting everyone is wearing roller skates, which can change direction very easily.

请这样看待问题：当交通压力小的时候，行人就像穿溜冰鞋行走，很容易改变方向。

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Incorrect setting of top roller cleaners, or worn cleaners.

上罗拉清洁器隔距不正确或破损。

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The process characteristic is that the first draw occurs in a steam box and the second draw between the succeeding drawing roller and setting roller.

其后加工特点是：一级拉伸发生在蒸气浴槽内，二级拉伸发生在第二拉伸辊与定型辊之间。

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