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.
早期电力工人将
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单独
绝缘物。
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.
早期电力工人将
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单独
绝缘物。
As both insulator and energy storage media, de-ionized water combines the advantages of high relative permittivity(is about 80), self repairability, low cost and ease of handling.
水介质具有高相对介电常数(约80),而且具有自我恢复
能力,在脉冲功率系统中被广泛应
。
The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.
简要介绍了泡沫塑料保温、密封、防水
拱形彩钢屋面
特点、构造、材料、设备、施工工艺、生产成本和应
。
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