具有较高电导的产物的链结构主要是1,4 -连接的头尾结构，链上同时存在苯式及醌式两种结构单元。
The products with higher conductivity are mainly 1, 4-connected head-to-tail chain structure, both benzenoid and quinoid units exist in the polymer chain.
分析了烧结机头尾密封四连杆密封装置存在的缺陷，介绍了全金属柔磁密封的结构和特点。
The paper analyzes the faults of four-link sealing device and introduces the structure and characteristics of all-metal flexible magnetic sealing.
数据结构。 可以将两个线性表头尾相接。
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