Knurling. Knurling is mainly a forming operation in which no chips are produced.

滚花主要是一种不产生切屑的成型操作。

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“If there’s no chips in the house, [teenagers] are not going to choose that to eat, ” says Knutson, who was not involved in the current study but has researched the health effects of short sleep.

“如果家里不放薯片 (青少年)也不会吃这些东西 ” 克纳斯顿说到 他虽没有参与到当前的研究中来 但是已经研究了睡眠不足会对健康的影响.

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There were no potatoes so we had fish and chips sans the chips.

那时没有土豆，所以我们吃了不带薯条的炸鱼薯条。

《牛津词典》

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