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.

早期的电力工人将它用作涂料，隔离缠绕在起的线圈，还将注满紫胶的纸层层地压紧制成单独的绝缘物。

Kind of moisture expellable, smell preventive shoe is characterized by that the whole shoe liner is made into a form of gas pump which can expel the moist air out in the shoe.

本发明公种能湿防、对脚部的压紧力大小可以由调节气压来控制的，特别跟脚而又不影响整体外形的。