high-voltage pin insulator

例句：

1. 1.The high-voltage power line is essential for transmitting electricity over long distances.
   高压输电线对于远距离传输电力至关重要。
2. 2.The engineer used a high-voltage pin insulator to prevent the electrical sparks from damaging the equipment.
   工程师使用高压绝缘子来防止电火花损坏设备。
3. 3. During maintenance, the technician replaced the old high-voltage pin insulator with a new one to ensure safe operation.
   在维护期间，技术人员用新的高压绝缘子替换了旧的，以确保安全运行。