金属纽扣 meaning in English

medal button
metal button

He was a big man, in a black coat, with metal buttons, and carried a long fowling-piece .
他是个魁梧的大汉，穿一件黑色的外套，镶着金属纽扣，扛了一枝长长的猎枪。
The different operations into which the making of a pin , or of a metal button , is subdivided , are all of them much more simple , and the dexterity of the person , of whose life it has been the sole business to perform them , is usually much greater
比较起来，制扣针和制金属纽扣所需的各项操作要简单得多，而以此为终生业务的人，其熟练程度通常也高得多。
When using the washing machine it should take out of the coin and other hard thing . if not , it will hurt the washing barrel and wave wheel . and the washing clothes should not exceed the provision and water should be under the marker
使用洗衣机时，洗涤前取出口袋中的硬币杂物，有金属纽扣的衣服应将金属纽扣扣上，并翻转衣服,使金属纽扣不外露,以防在洗涤过程中金属等硬物损坏洗衣桶及波轮。