压紧的

Early electrical workers used it as a coating to insulate coils, and molded it into stand-alone insulators by pressing together layers of shellac-impreg-nated paper.

电力工人将它用作涂料，隔离缠绕在一起线圈，还将注满了紫胶纸一层层地压紧制成独绝缘物。