在X线摄影工作中,经常会遇到一些部位,因需要双侧对比或需要拍正侧位片,而用铅皮分别遮盖胶片1/2,以使两侧或正侧位影像显示在一张胶片上,但和胸片架配合应用的遮线板确未见报导过,而我们在工作中自行设计并制做了一种能和胸片架配合应用的遮线板,简称为“悬挂式遮线板”,经使用证明效果较好,其方法介绍如下: 一、材料与制作方法 In the X-ray photography work, often encounter some parts, because of the need for bilateral contrast or the need to make a positive side of the film, and the film were covered with lead skin 1/2, so that both sides or positive side of the image is displayed in a Zhang film, but with the chest with the use of ophthalmic shield has indeed been reported, and we at work in their own design and made a chest and can be used in conjunction with the mask, referred to as “hanging Type mask ”, the use of proven good effect, the method described below: First, the material and production methods