porcelain post insulator

• 支柱瓷绝缘子

porcelain post insulator的用法和样例：

例句

1. Strut porcelain insulator inspecting technique and life management technique is the study issue of electric power industry at present.
   支柱瓷绝缘子检测技术及寿命管理技术是目前电力行业研究的课题。