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1、apparatus bushing装置衬套 双语例句1In recent ten and more years, the composite insulation of PTFE film with silicon oil emerges as a new type of insulation construction used in dry type insulation core in high voltage apparatus, such as wall bushing, current transformer and power cable terminal etc. 涂有硅油的聚四氟乙烯（PTFE）薄膜复合绝缘是用于制造干式穿墙套管、电流互感器、电缆终端头等高压电器绝缘芯体的一种新型绝缘结构。

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