metal clip meaning in English

金夹
金属夹

Before norwegian johan vaaler devised a bent metal clip in 1990 , papers were secured by straight pins , which had the predictable effect of gouging their recipients
在挪威人约安?瓦勒于1990年发明这种弯曲的金属小夹子之前，文件是用明显会划伤接收者的直针固定在一起的。
His head is held stationary with both a brace and six metal clips attached to his cheeks , three on each side , which stretch his skin in what looks to me a most uncomfortable manner
他的头被金属带子和六个贴在脸上的金属夹子固定着，一边三个，拉着他的皮肤，在我看来这非常难受。
Please do not fold , staple or attach the photograph to the application form by metal clips or write at the back of the photograph ( otherwise , it will result in making the photograph unsuitable for photo - capturing )
请勿将照片屈摺，或用钉书钉或万字夹把照片附于申请书上，或在照片背后写字
Please do not fold , staple or attach the photographs to the application form by metal clips or write at the back of the photographs ( otherwise , it will result in making the photographs unsuitable for photo - capturing )
请勿将照片屈摺，或用钉书钉或万字夹把照片附于申请书上，或在照片背后写字